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105 vulnerabilities found for curl by CURL

CVE-2026-7168 (GCVE-0-2026-7168)

Vulnerability from nvd – Published: 2026-05-13 08:29 – Updated: 2026-05-13 14:18
VLAI
Title
cross-proxy Digest auth state leak
Summary
Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Affected: 7.13.2 , ≤ 7.13.2 (semver)
Affected: 7.13.1 , ≤ 7.13.1 (semver)
Affected: 7.13.0 , ≤ 7.13.0 (semver)
Affected: 7.12.3 , ≤ 7.12.3 (semver)
Affected: 7.12.2 , ≤ 7.12.2 (semver)
Affected: 7.12.1 , ≤ 7.12.1 (semver)
Affected: 7.12.0 , ≤ 7.12.0 (semver)
Create a notification for this product.
Credits
Muhamad Arga Reksapati Daniel Stenberg
Show details on NVD website

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        "references": [
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        "metrics": [
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              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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                  {
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T14:18:10.734219Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2026-05-13T14:18:13.718Z",
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    "cna": {
      "affected": [
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          "product": "curl",
          "vendor": "curl",
          "versions": [
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              "lessThanOrEqual": "8.19.0",
              "status": "affected",
              "version": "8.19.0",
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              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
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              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
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              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
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              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
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              "lessThanOrEqual": "8.14.0",
              "status": "affected",
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              "lessThanOrEqual": "8.13.0",
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              "lessThanOrEqual": "8.12.1",
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              "lessThanOrEqual": "8.12.0",
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              "version": "8.12.0",
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              "lessThanOrEqual": "8.11.1",
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              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.0",
              "status": "affected",
              "version": "8.9.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.1",
              "status": "affected",
              "version": "8.7.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.0",
              "status": "affected",
              "version": "8.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.4.0",
              "status": "affected",
              "version": "8.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.3.0",
              "status": "affected",
              "version": "8.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.1",
              "status": "affected",
              "version": "8.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.0",
              "status": "affected",
              "version": "8.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "8.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.1",
              "status": "affected",
              "version": "8.1.1",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "8.1.0",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.1",
              "status": "affected",
              "version": "8.0.1",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "8.0.0",
              "status": "affected",
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            {
              "lessThanOrEqual": "7.88.1",
              "status": "affected",
              "version": "7.88.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.0",
              "status": "affected",
              "version": "7.88.0",
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            },
            {
              "lessThanOrEqual": "7.87.0",
              "status": "affected",
              "version": "7.87.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.86.0",
              "status": "affected",
              "version": "7.86.0",
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            },
            {
              "lessThanOrEqual": "7.85.0",
              "status": "affected",
              "version": "7.85.0",
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            },
            {
              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
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            },
            {
              "lessThanOrEqual": "7.83.1",
              "status": "affected",
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            },
            {
              "lessThanOrEqual": "7.83.0",
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            {
              "lessThanOrEqual": "7.82.0",
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            {
              "lessThanOrEqual": "7.81.0",
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            {
              "lessThanOrEqual": "7.80.0",
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            {
              "lessThanOrEqual": "7.79.1",
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            {
              "lessThanOrEqual": "7.79.0",
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            {
              "lessThanOrEqual": "7.78.0",
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            {
              "lessThanOrEqual": "7.77.0",
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            {
              "lessThanOrEqual": "7.76.1",
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            {
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            {
              "lessThanOrEqual": "7.75.0",
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            {
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            {
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            {
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              "lessThanOrEqual": "7.70.0",
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              "lessThanOrEqual": "7.69.1",
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            {
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              "lessThanOrEqual": "7.67.0",
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            {
              "lessThanOrEqual": "7.65.2",
              "status": "affected",
              "version": "7.65.2",
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            },
            {
              "lessThanOrEqual": "7.65.1",
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              "version": "7.65.1",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.65.0",
              "status": "affected",
              "version": "7.65.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.1",
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CVE-2026-7009 (GCVE-0-2026-7009)

Vulnerability from nvd – Published: 2026-05-13 08:28 – Updated: 2026-05-13 14:20
VLAI
Title
OCSP stapling bypass with Apple SecTrust
Summary
When curl is told to use the Certificate Status Request TLS extension, often referred to as *OCSP stapling*, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Create a notification for this product.
Credits
Carlos Carrillo Stefan Eissing
Show details on NVD website

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          "url": "https://hackerone.com/reports/3694390"
        }
      ],
      "title": "OCSP stapling bypass with Apple SecTrust"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-7009",
    "datePublished": "2026-05-13T08:28:53.697Z",
    "dateReserved": "2026-04-25T08:37:24.989Z",
    "dateUpdated": "2026-05-13T14:20:33.908Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-6429 (GCVE-0-2026-6429)

Vulnerability from nvd – Published: 2026-05-13 08:28 – Updated: 2026-05-13 14:03
VLAI
Title
netrc credential leak with reused proxy connection
Summary
When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Create a notification for this product.
Credits
Muhamad Arga Reksapati Daniel Stenberg
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-6429",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T14:03:52.312824Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T14:03:55.343Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.19.0",
              "status": "affected",
              "version": "8.19.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.1",
              "status": "affected",
              "version": "8.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
              "version": "8.11.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.0",
              "status": "affected",
              "version": "8.9.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.1",
              "status": "affected",
              "version": "8.7.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.0",
              "status": "affected",
              "version": "8.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.4.0",
              "status": "affected",
              "version": "8.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.3.0",
              "status": "affected",
              "version": "8.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.1",
              "status": "affected",
              "version": "8.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.0",
              "status": "affected",
              "version": "8.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "8.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.1",
              "status": "affected",
              "version": "8.1.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.0",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.1",
              "status": "affected",
              "version": "8.0.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.0",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.1",
              "status": "affected",
              "version": "7.88.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.0",
              "status": "affected",
              "version": "7.88.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.87.0",
              "status": "affected",
              "version": "7.87.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.86.0",
              "status": "affected",
              "version": "7.86.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.85.0",
              "status": "affected",
              "version": "7.85.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.1",
              "status": "affected",
              "version": "7.83.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.0",
              "status": "affected",
              "version": "7.83.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.82.0",
              "status": "affected",
              "version": "7.82.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.81.0",
              "status": "affected",
              "version": "7.81.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.80.0",
              "status": "affected",
              "version": "7.80.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.79.1",
              "status": "affected",
              "version": "7.79.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.79.0",
              "status": "affected",
              "version": "7.79.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.78.0",
              "status": "affected",
              "version": "7.78.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.77.0",
              "status": "affected",
              "version": "7.77.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.76.1",
              "status": "affected",
              "version": "7.76.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.76.0",
              "status": "affected",
              "version": "7.76.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.75.0",
              "status": "affected",
              "version": "7.75.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.74.0",
              "status": "affected",
              "version": "7.74.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.73.0",
              "status": "affected",
              "version": "7.73.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.72.0",
              "status": "affected",
              "version": "7.72.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.1",
              "status": "affected",
              "version": "7.71.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.0",
              "status": "affected",
              "version": "7.71.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.70.0",
              "status": "affected",
              "version": "7.70.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.69.1",
              "status": "affected",
              "version": "7.69.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.69.0",
              "status": "affected",
              "version": "7.69.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.68.0",
              "status": "affected",
              "version": "7.68.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.67.0",
              "status": "affected",
              "version": "7.67.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.66.0",
              "status": "affected",
              "version": "7.66.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.3",
              "status": "affected",
              "version": "7.65.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.2",
              "status": "affected",
              "version": "7.65.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.1",
              "status": "affected",
              "version": "7.65.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.0",
              "status": "affected",
              "version": "7.65.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.1",
              "status": "affected",
              "version": "7.64.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.0",
              "status": "affected",
              "version": "7.64.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.63.0",
              "status": "affected",
              "version": "7.63.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.62.0",
              "status": "affected",
              "version": "7.62.0",
              "versionType": "semver"
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CVE-2026-6276 (GCVE-0-2026-6276)

Vulnerability from nvd – Published: 2026-05-13 08:28 – Updated: 2026-05-13 17:26
VLAI
Title
stale custom cookie host causes cookie leak
Summary
Using libcurl, when a custom `Host:` header is first set for an HTTP request and a second request is subsequently done using the same *easy handle* but without the custom `Host:` header set, the second request would use stale information and pass on cookies meant for the first host in the second request. Leak them.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Create a notification for this product.
Credits
Muhamad Arga Reksapati Daniel Stenberg
Show details on NVD website

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              "status": "affected",
              "version": "8.2.0",
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            },
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "8.1.2",
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            },
            {
              "lessThanOrEqual": "8.1.1",
              "status": "affected",
              "version": "8.1.1",
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            },
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              "lessThanOrEqual": "8.1.0",
              "status": "affected",
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            },
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              "lessThanOrEqual": "7.88.1",
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              "version": "7.88.1",
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            },
            {
              "lessThanOrEqual": "7.88.0",
              "status": "affected",
              "version": "7.88.0",
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              "lessThanOrEqual": "7.87.0",
              "status": "affected",
              "version": "7.87.0",
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            {
              "lessThanOrEqual": "7.86.0",
              "status": "affected",
              "version": "7.86.0",
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            },
            {
              "lessThanOrEqual": "7.85.0",
              "status": "affected",
              "version": "7.85.0",
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            },
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              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
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              "lessThanOrEqual": "7.83.1",
              "status": "affected",
              "version": "7.83.1",
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              "lessThanOrEqual": "7.83.0",
              "status": "affected",
              "version": "7.83.0",
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              "lessThanOrEqual": "7.82.0",
              "status": "affected",
              "version": "7.82.0",
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              "lessThanOrEqual": "7.81.0",
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              "version": "7.81.0",
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              "lessThanOrEqual": "7.80.0",
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              "version": "7.80.0",
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              "lessThanOrEqual": "7.79.1",
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              "lessThanOrEqual": "7.77.0",
              "status": "affected",
              "version": "7.77.0",
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      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Muhamad Arga Reksapati"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Using libcurl, when a custom `Host:` header is first set for an HTTP request\nand a second request is subsequently done using the same *easy handle* but\nwithout the custom `Host:` header set, the second request would use stale\ninformation and pass on cookies meant for the first host in the second\nrequest. Leak them."
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            {
              "description": "CWE-346 Origin Validation Error",
              "lang": "en"
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        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
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          "url": "https://curl.se/docs/CVE-2026-6276.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3671818"
        }
      ],
      "title": "stale custom cookie host causes cookie leak"
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    "datePublished": "2026-05-13T08:28:19.273Z",
    "dateReserved": "2026-04-14T14:01:54.772Z",
    "dateUpdated": "2026-05-13T17:26:06.894Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}

CVE-2026-6253 (GCVE-0-2026-6253)

Vulnerability from nvd – Published: 2026-05-13 08:28 – Updated: 2026-05-13 17:42
VLAI
Title
proxy credentials leak over redirect-to proxy
Summary
curl might erroneously pass on credentials for a first proxy to a second proxy. This can happen when the following conditions are true: 1. curl is setup to use specific different proxies for different URL schemes 2. the first proxy needs credentials 3. the second proxy uses no credentials 4. while using the first proxy (using say `http://`), curl is asked to follow a redirect to a URL using another scheme (say `https://`), accessed using a second, different, proxy
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Create a notification for this product.
Credits
Dwij Mehta (O2 Lab Texas A&M University) Daniel Stenberg
Show details on NVD website

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              "lessThanOrEqual": "7.15.5",
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              "lessThanOrEqual": "7.15.4",
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              "version": "7.15.4",
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              "lessThanOrEqual": "7.15.3",
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              "version": "7.15.3",
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      "credits": [
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          "type": "finder",
          "value": "Dwij Mehta (O2 Lab"
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          "type": "finder",
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CVE-2026-5773 (GCVE-0-2026-5773)

Vulnerability from nvd – Published: 2026-05-13 08:27 – Updated: 2026-05-13 17:45
VLAI
Title
wrong reuse of SMB connection
Summary
libcurl might in some circumstances reuse the wrong connection for SMB(S) transfers. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the code, a network transfer operation that was requested by an application could wrongfully reuse an existing SMB connection to the same server that was using a different 'share' than the new subsequent transfer should. This could in unlucky situations lead to the download of the wrong file or the upload of a file to the wrong place. When this happens, the same credentials are used and the server name is the same.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Create a notification for this product.
Credits
Osama Hamad Daniel Stenberg
Show details on NVD website

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              "version": "7.64.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.63.0",
              "status": "affected",
              "version": "7.63.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.62.0",
              "status": "affected",
              "version": "7.62.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.1",
              "status": "affected",
              "version": "7.61.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.0",
              "status": "affected",
              "version": "7.61.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.60.0",
              "status": "affected",
              "version": "7.60.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.59.0",
              "status": "affected",
              "version": "7.59.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.58.0",
              "status": "affected",
              "version": "7.58.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.57.0",
              "status": "affected",
              "version": "7.57.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.56.1",
              "status": "affected",
              "version": "7.56.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.56.0",
              "status": "affected",
              "version": "7.56.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.55.1",
              "status": "affected",
              "version": "7.55.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.55.0",
              "status": "affected",
              "version": "7.55.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.54.1",
              "status": "affected",
              "version": "7.54.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.54.0",
              "status": "affected",
              "version": "7.54.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.53.1",
              "status": "affected",
              "version": "7.53.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.53.0",
              "status": "affected",
              "version": "7.53.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.1",
              "status": "affected",
              "version": "7.52.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.0",
              "status": "affected",
              "version": "7.52.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.51.0",
              "status": "affected",
              "version": "7.51.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.3",
              "status": "affected",
              "version": "7.50.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.2",
              "status": "affected",
              "version": "7.50.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.1",
              "status": "affected",
              "version": "7.50.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.0",
              "status": "affected",
              "version": "7.50.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.1",
              "status": "affected",
              "version": "7.49.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.0",
              "status": "affected",
              "version": "7.49.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.48.0",
              "status": "affected",
              "version": "7.48.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.1",
              "status": "affected",
              "version": "7.47.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.0",
              "status": "affected",
              "version": "7.47.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.46.0",
              "status": "affected",
              "version": "7.46.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.45.0",
              "status": "affected",
              "version": "7.45.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.44.0",
              "status": "affected",
              "version": "7.44.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.43.0",
              "status": "affected",
              "version": "7.43.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.1",
              "status": "affected",
              "version": "7.42.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.0",
              "status": "affected",
              "version": "7.42.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.41.0",
              "status": "affected",
              "version": "7.41.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.40.0",
              "status": "affected",
              "version": "7.40.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Osama Hamad"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libcurl might in some circumstances reuse the wrong connection for SMB(S)\ntransfers.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a network transfer operation that was requested by an\napplication could wrongfully reuse an existing SMB connection to the same\nserver that was using a different \u0027share\u0027 than the new subsequent transfer\nshould.\n\nThis could in unlucky situations lead to the download of the wrong file or the\nupload of a file to the wrong place. When this happens, the same credentials\nare used and the server name is the same."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-488 Exposure of Data Element to Wrong Session",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T08:27:42.342Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-5773.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-5773.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3650689"
        }
      ],
      "title": "wrong reuse of SMB connection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-5773",
    "datePublished": "2026-05-13T08:27:42.342Z",
    "dateReserved": "2026-04-08T06:51:05.356Z",
    "dateUpdated": "2026-05-13T17:45:08.173Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-5545 (GCVE-0-2026-5545)

Vulnerability from nvd – Published: 2026-05-13 08:27 – Updated: 2026-05-13 17:46
VLAI
Title
wrong reuse of HTTP Negotiate connection
Summary
libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTP(S) request after a Negotiate-authenticated one, when both use the same host. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different credentials. An application that first uses Negotiate authentication to a server with `user1:password1` and then does another operation to the same server asking for any authentication method but for `user2:password2` (while the previous connection is still alive) - the second request gets confused and wrongly reuses the same connection and sends the new request over that connection thinking it uses a mix of user1's and user2's credentials when it is in fact still using the connection authenticated for user1...
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Affected: 7.13.2 , ≤ 7.13.2 (semver)
Affected: 7.13.1 , ≤ 7.13.1 (semver)
Affected: 7.13.0 , ≤ 7.13.0 (semver)
Affected: 7.12.3 , ≤ 7.12.3 (semver)
Affected: 7.12.2 , ≤ 7.12.2 (semver)
Affected: 7.12.1 , ≤ 7.12.1 (semver)
Affected: 7.12.0 , ≤ 7.12.0 (semver)
Affected: 7.11.2 , ≤ 7.11.2 (semver)
Affected: 7.11.1 , ≤ 7.11.1 (semver)
Affected: 7.11.0 , ≤ 7.11.0 (semver)
Affected: 7.10.8 , ≤ 7.10.8 (semver)
Affected: 7.10.7 , ≤ 7.10.7 (semver)
Affected: 7.10.6 , ≤ 7.10.6 (semver)
Create a notification for this product.
Credits
Quac Tran and Ngoc Hieu Stefan Eissing
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-5545",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T17:46:36.115262Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T17:46:40.830Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://hackerone.com/reports/3642555"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.19.0",
              "status": "affected",
              "version": "8.19.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.1",
              "status": "affected",
              "version": "8.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
              "version": "8.11.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
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              "version": "7.15.0",
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              "lessThanOrEqual": "7.14.1",
              "status": "affected",
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              "lessThanOrEqual": "7.10.7",
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          "value": "libcurl might in some circumstances reuse the wrong connection when asked to\ndo an authenticated HTTP(S) request after a Negotiate-authenticated one, when\nboth use the same host.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials.\n\nAn application that first uses Negotiate authentication to a server with\n`user1:password1` and then does another operation to the same server asking\nfor any authentication method but for `user2:password2` (while the previous\nconnection is still alive) - the second request gets confused and wrongly\nreuses the same connection and sends the new request over that connection\nthinking it uses a mix of user1\u0027s and user2\u0027s credentials when it is in fact\nstill using the connection authenticated for user1..."
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          "name": "issue",
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CVE-2026-4873 (GCVE-0-2026-4873)

Vulnerability from nvd – Published: 2026-05-13 08:27 – Updated: 2026-05-13 19:30
VLAI
Title
connection reuse ignores TLS requirement
Summary
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request to that same host bypasses the TLS requirement and instead transmit data unencrypted.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Create a notification for this product.
Credits
Arkadi Vainbrand Daniel Stenberg
Show details on NVD website

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              "lessThanOrEqual": "8.1.2",
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            {
              "lessThanOrEqual": "7.76.1",
              "status": "affected",
              "version": "7.76.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.76.0",
              "status": "affected",
              "version": "7.76.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.75.0",
              "status": "affected",
              "version": "7.75.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.74.0",
              "status": "affected",
              "version": "7.74.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.73.0",
              "status": "affected",
              "version": "7.73.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.72.0",
              "status": "affected",
              "version": "7.72.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.1",
              "status": "affected",
              "version": "7.71.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.0",
              "status": "affected",
              "version": "7.71.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.70.0",
              "status": "affected",
              "version": "7.70.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.69.1",
              "status": "affected",
              "version": "7.69.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.69.0",
              "status": "affected",
              "version": "7.69.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.68.0",
              "status": "affected",
              "version": "7.68.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.67.0",
              "status": "affected",
              "version": "7.67.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.66.0",
              "status": "affected",
              "version": "7.66.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.3",
              "status": "affected",
              "version": "7.65.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.2",
              "status": "affected",
              "version": "7.65.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.1",
              "status": "affected",
              "version": "7.65.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.0",
              "status": "affected",
              "version": "7.65.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.1",
              "status": "affected",
              "version": "7.64.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.0",
              "status": "affected",
              "version": "7.64.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.63.0",
              "status": "affected",
              "version": "7.63.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.62.0",
              "status": "affected",
              "version": "7.62.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.1",
              "status": "affected",
              "version": "7.61.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.0",
              "status": "affected",
              "version": "7.61.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.60.0",
              "status": "affected",
              "version": "7.60.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.59.0",
              "status": "affected",
              "version": "7.59.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.58.0",
              "status": "affected",
              "version": "7.58.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.57.0",
              "status": "affected",
              "version": "7.57.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.56.1",
              "status": "affected",
              "version": "7.56.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.56.0",
              "status": "affected",
              "version": "7.56.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.55.1",
              "status": "affected",
              "version": "7.55.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.55.0",
              "status": "affected",
              "version": "7.55.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.54.1",
              "status": "affected",
              "version": "7.54.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.54.0",
              "status": "affected",
              "version": "7.54.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.53.1",
              "status": "affected",
              "version": "7.53.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.53.0",
              "status": "affected",
              "version": "7.53.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.1",
              "status": "affected",
              "version": "7.52.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.0",
              "status": "affected",
              "version": "7.52.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.51.0",
              "status": "affected",
              "version": "7.51.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.3",
              "status": "affected",
              "version": "7.50.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.2",
              "status": "affected",
              "version": "7.50.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.1",
              "status": "affected",
              "version": "7.50.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.0",
              "status": "affected",
              "version": "7.50.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.1",
              "status": "affected",
              "version": "7.49.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.0",
              "status": "affected",
              "version": "7.49.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.48.0",
              "status": "affected",
              "version": "7.48.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.1",
              "status": "affected",
              "version": "7.47.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.0",
              "status": "affected",
              "version": "7.47.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.46.0",
              "status": "affected",
              "version": "7.46.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.45.0",
              "status": "affected",
              "version": "7.45.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.44.0",
              "status": "affected",
              "version": "7.44.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.43.0",
              "status": "affected",
              "version": "7.43.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.1",
              "status": "affected",
              "version": "7.42.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.0",
              "status": "affected",
              "version": "7.42.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.41.0",
              "status": "affected",
              "version": "7.41.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.40.0",
              "status": "affected",
              "version": "7.40.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.39.0",
              "status": "affected",
              "version": "7.39.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.38.0",
              "status": "affected",
              "version": "7.38.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.37.1",
              "status": "affected",
              "version": "7.37.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.37.0",
              "status": "affected",
              "version": "7.37.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.36.0",
              "status": "affected",
              "version": "7.36.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.35.0",
              "status": "affected",
              "version": "7.35.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.34.0",
              "status": "affected",
              "version": "7.34.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.33.0",
              "status": "affected",
              "version": "7.33.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.32.0",
              "status": "affected",
              "version": "7.32.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.31.0",
              "status": "affected",
              "version": "7.31.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.30.0",
              "status": "affected",
              "version": "7.30.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.29.0",
              "status": "affected",
              "version": "7.29.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.28.1",
              "status": "affected",
              "version": "7.28.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.28.0",
              "status": "affected",
              "version": "7.28.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.27.0",
              "status": "affected",
              "version": "7.27.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.26.0",
              "status": "affected",
              "version": "7.26.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.25.0",
              "status": "affected",
              "version": "7.25.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.24.0",
              "status": "affected",
              "version": "7.24.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.23.1",
              "status": "affected",
              "version": "7.23.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.23.0",
              "status": "affected",
              "version": "7.23.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.22.0",
              "status": "affected",
              "version": "7.22.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.21.7",
              "status": "affected",
              "version": "7.21.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.21.6",
              "status": "affected",
              "version": "7.21.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.21.5",
              "status": "affected",
              "version": "7.21.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.21.4",
              "status": "affected",
              "version": "7.21.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.21.3",
              "status": "affected",
              "version": "7.21.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.21.2",
              "status": "affected",
              "version": "7.21.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.21.1",
              "status": "affected",
              "version": "7.21.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.21.0",
              "status": "affected",
              "version": "7.21.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.20.1",
              "status": "affected",
              "version": "7.20.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.20.0",
              "status": "affected",
              "version": "7.20.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Arkadi Vainbrand"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability exists where a connection requiring TLS incorrectly reuses an\nexisting unencrypted connection from the same connection pool. If an initial\ntransfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request\nto that same host bypasses the TLS requirement and instead transmit data\nunencrypted."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-319 Cleartext Transmission of Sensitive Information",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T08:27:04.538Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-4873.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-4873.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3621851"
        }
      ],
      "title": "connection reuse ignores TLS requirement"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-4873",
    "datePublished": "2026-05-13T08:27:04.538Z",
    "dateReserved": "2026-03-26T05:38:02.098Z",
    "dateUpdated": "2026-05-13T19:30:04.825Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-3784 (GCVE-0-2026-3784)

Vulnerability from nvd – Published: 2026-03-11 10:09 – Updated: 2026-06-02 13:00
VLAI
Title
wrong proxy connection reuse with credentials
Summary
curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Affected: 7.13.2 , ≤ 7.13.2 (semver)
Affected: 7.13.1 , ≤ 7.13.1 (semver)
Affected: 7.13.0 , ≤ 7.13.0 (semver)
Affected: 7.12.3 , ≤ 7.12.3 (semver)
Affected: 7.12.2 , ≤ 7.12.2 (semver)
Affected: 7.12.1 , ≤ 7.12.1 (semver)
Affected: 7.12.0 , ≤ 7.12.0 (semver)
Affected: 7.11.2 , ≤ 7.11.2 (semver)
Affected: 7.11.1 , ≤ 7.11.1 (semver)
Affected: 7.11.0 , ≤ 7.11.0 (semver)
Affected: 7.10.8 , ≤ 7.10.8 (semver)
Affected: 7.10.7 , ≤ 7.10.7 (semver)
Affected: 7.10.6 , ≤ 7.10.6 (semver)
Affected: 7.10.5 , ≤ 7.10.5 (semver)
Affected: 7.10.4 , ≤ 7.10.4 (semver)
Affected: 7.10.3 , ≤ 7.10.3 (semver)
Affected: 7.10.2 , ≤ 7.10.2 (semver)
Affected: 7.10.1 , ≤ 7.10.1 (semver)
Affected: 7.10 , ≤ 7.10 (semver)
Affected: 7.9.8 , ≤ 7.9.8 (semver)
Affected: 7.9.7 , ≤ 7.9.7 (semver)
Affected: 7.9.6 , ≤ 7.9.6 (semver)
Affected: 7.9.5 , ≤ 7.9.5 (semver)
Affected: 7.9.4 , ≤ 7.9.4 (semver)
Affected: 7.9.3 , ≤ 7.9.3 (semver)
Affected: 7.9.2 , ≤ 7.9.2 (semver)
Affected: 7.9.1 , ≤ 7.9.1 (semver)
Affected: 7.9 , ≤ 7.9 (semver)
Affected: 7.8.1 , ≤ 7.8.1 (semver)
Affected: 7.8 , ≤ 7.8 (semver)
Affected: 7.7.3 , ≤ 7.7.3 (semver)
Affected: 7.7.2 , ≤ 7.7.2 (semver)
Affected: 7.7.1 , ≤ 7.7.1 (semver)
Affected: 7.7 , ≤ 7.7 (semver)
Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V4.0 (custom)
Create a notification for this product.
Credits
Muhamad Arga Reksapati (HackerOne: nobcoder) Stefan Eissing
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-03-11T10:16:32.844Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/03/11/3"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-3784",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-11T15:48:38.785522Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-305",
                "description": "CWE-305 Authentication Bypass by Primary Weakness",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-11T15:48:41.725Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "defaultStatus": "unknown",
            "product": "RUGGEDCOM RST2428P",
            "vendor": "Siemens",
            "versions": [
              {
                "lessThan": "V4.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-02T13:00:43.860Z",
          "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
          "shortName": "siemens-SADP"
        },
        "references": [
          {
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html"
          }
        ],
        "x_adpType": "supplier"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
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            },
            {
              "lessThanOrEqual": "8.12.1",
              "status": "affected",
              "version": "8.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
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            {
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              "status": "affected",
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            {
              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.0",
              "status": "affected",
              "version": "8.9.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.1",
              "status": "affected",
              "version": "8.7.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.0",
              "status": "affected",
              "version": "8.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.4.0",
              "status": "affected",
              "version": "8.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.3.0",
              "status": "affected",
              "version": "8.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.1",
              "status": "affected",
              "version": "8.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.0",
              "status": "affected",
              "version": "8.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "8.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.1",
              "status": "affected",
              "version": "8.1.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.0",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.1",
              "status": "affected",
              "version": "8.0.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.0",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.1",
              "status": "affected",
              "version": "7.88.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.0",
              "status": "affected",
              "version": "7.88.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.87.0",
              "status": "affected",
              "version": "7.87.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.86.0",
              "status": "affected",
              "version": "7.86.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.85.0",
              "status": "affected",
              "version": "7.85.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.1",
              "status": "affected",
              "version": "7.83.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.0",
              "status": "affected",
              "version": "7.83.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.82.0",
              "status": "affected",
              "version": "7.82.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.81.0",
              "status": "affected",
              "version": "7.81.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.80.0",
              "status": "affected",
              "version": "7.80.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.79.1",
              "status": "affected",
              "version": "7.79.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.79.0",
              "status": "affected",
              "version": "7.79.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.78.0",
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              "version": "7.78.0",
              "versionType": "semver"
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              "version": "7.77.0",
              "versionType": "semver"
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              "version": "7.76.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.75.0",
              "status": "affected",
              "version": "7.75.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.74.0",
              "status": "affected",
              "version": "7.74.0",
              "versionType": "semver"
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              "version": "7.72.0",
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            {
              "lessThanOrEqual": "7.71.1",
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              "version": "7.71.1",
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              "lessThanOrEqual": "7.70.0",
              "status": "affected",
              "version": "7.70.0",
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            {
              "lessThanOrEqual": "7.69.1",
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              "version": "7.69.1",
              "versionType": "semver"
            },
            {
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              "status": "affected",
              "version": "7.69.0",
              "versionType": "semver"
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            {
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              "status": "affected",
              "version": "7.68.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.67.0",
              "status": "affected",
              "version": "7.67.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.66.0",
              "status": "affected",
              "version": "7.66.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.3",
              "status": "affected",
              "version": "7.65.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.2",
              "status": "affected",
              "version": "7.65.2",
              "versionType": "semver"
            },
            {
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              "status": "affected",
              "version": "7.65.1",
              "versionType": "semver"
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              "version": "7.64.0",
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              "status": "affected",
              "version": "7.62.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.1",
              "status": "affected",
              "version": "7.61.1",
              "versionType": "semver"
            },
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              "status": "affected",
              "version": "7.61.0",
              "versionType": "semver"
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            {
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              "status": "affected",
              "version": "7.60.0",
              "versionType": "semver"
            },
            {
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              "status": "affected",
              "version": "7.59.0",
              "versionType": "semver"
            },
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              "version": "7.53.1",
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            },
            {
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              "status": "affected",
              "version": "7.53.0",
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            {
              "lessThanOrEqual": "7.52.1",
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              "version": "7.52.1",
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            {
              "lessThanOrEqual": "7.52.0",
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              "version": "7.52.0",
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              "lessThanOrEqual": "7.51.0",
              "status": "affected",
              "version": "7.51.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.3",
              "status": "affected",
              "version": "7.50.3",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.50.2",
              "status": "affected",
              "version": "7.50.2",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.50.1",
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              "version": "7.50.1",
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            {
              "lessThanOrEqual": "7.50.0",
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              "version": "7.50.0",
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            {
              "lessThanOrEqual": "7.49.1",
              "status": "affected",
              "version": "7.49.1",
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            {
              "lessThanOrEqual": "7.49.0",
              "status": "affected",
              "version": "7.49.0",
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              "lessThanOrEqual": "7.48.0",
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              "version": "7.48.0",
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              "lessThanOrEqual": "7.47.1",
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CVE-2026-3805 (GCVE-0-2026-3805)

Vulnerability from nvd – Published: 2026-03-11 10:09 – Updated: 2026-03-11 15:45
VLAI
Title
use after free in SMB connection reuse
Summary
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Create a notification for this product.
Credits
Daniel Wade Stefan Eissing
Show details on NVD website

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          "url": "https://curl.se/docs/CVE-2026-3805.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3591944"
        }
      ],
      "title": "use after free in SMB connection reuse"
    }
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    "datePublished": "2026-03-11T10:09:37.729Z",
    "dateReserved": "2026-03-08T16:07:39.817Z",
    "dateUpdated": "2026-03-11T15:45:38.820Z",
    "state": "PUBLISHED"
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  "dataVersion": "5.2"
}

CVE-2026-3783 (GCVE-0-2026-3783)

Vulnerability from nvd – Published: 2026-03-11 10:09 – Updated: 2026-03-11 14:26
VLAI
Title
token leak with redirect and netrc
Summary
When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used .netrc file, with either of the `machine` or `default` keywords, curl would pass on the bearer token set for the first host also to the second one.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Create a notification for this product.
Credits
spectreglobalsec on hackerone Daniel Stenberg
Show details on NVD website

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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.1",
              "status": "affected",
              "version": "7.52.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.0",
              "status": "affected",
              "version": "7.52.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.51.0",
              "status": "affected",
              "version": "7.51.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.3",
              "status": "affected",
              "version": "7.50.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.2",
              "status": "affected",
              "version": "7.50.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.1",
              "status": "affected",
              "version": "7.50.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.0",
              "status": "affected",
              "version": "7.50.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.1",
              "status": "affected",
              "version": "7.49.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.0",
              "status": "affected",
              "version": "7.49.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.48.0",
              "status": "affected",
              "version": "7.48.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.1",
              "status": "affected",
              "version": "7.47.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.0",
              "status": "affected",
              "version": "7.47.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.46.0",
              "status": "affected",
              "version": "7.46.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.45.0",
              "status": "affected",
              "version": "7.45.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.44.0",
              "status": "affected",
              "version": "7.44.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.43.0",
              "status": "affected",
              "version": "7.43.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.1",
              "status": "affected",
              "version": "7.42.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.0",
              "status": "affected",
              "version": "7.42.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.41.0",
              "status": "affected",
              "version": "7.41.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.40.0",
              "status": "affected",
              "version": "7.40.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.39.0",
              "status": "affected",
              "version": "7.39.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.38.0",
              "status": "affected",
              "version": "7.38.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.37.1",
              "status": "affected",
              "version": "7.37.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.37.0",
              "status": "affected",
              "version": "7.37.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.36.0",
              "status": "affected",
              "version": "7.36.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.35.0",
              "status": "affected",
              "version": "7.35.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.34.0",
              "status": "affected",
              "version": "7.34.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.33.0",
              "status": "affected",
              "version": "7.33.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "spectreglobalsec on hackerone"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a redirect to a second URL, curl could leak that token to the second\nhostname under some circumstances.\n\nIf the hostname that the first request is redirected to has information in the\nused .netrc file, with either of the `machine` or `default` keywords, curl\nwould pass on the bearer token set for the first host also to the second one."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-522 Insufficiently Protected Credentials",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-11T10:09:08.746Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-3783.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-3783.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3583983"
        }
      ],
      "title": "token leak with redirect and netrc"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-3783",
    "datePublished": "2026-03-11T10:09:08.746Z",
    "dateReserved": "2026-03-08T05:09:09.891Z",
    "dateUpdated": "2026-03-11T14:26:10.788Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-1965 (GCVE-0-2026-1965)

Vulnerability from nvd – Published: 2026-03-11 10:08 – Updated: 2026-03-11 14:32
VLAI
Title
bad reuse of HTTP Negotiate connection
Summary
libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criterion must first be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different credentials. One underlying reason being that Negotiate sometimes authenticates *connections* and not *requests*, contrary to how HTTP is designed to work. An application that allows Negotiate authentication to a server (that responds wanting Negotiate) with `user1:password1` and then does another operation to the same server also using Negotiate but with `user2:password2` (while the previous connection is still alive) - the second request wrongly reused the same connection and since it then sees that the Negotiate negotiation is already made, it just sends the request over that connection thinking it uses the user2 credentials when it is in fact still using the connection authenticated for user1... The set of authentication methods to use is set with `CURLOPT_HTTPAUTH`. Applications can disable libcurl's reuse of connections and thus mitigate this problem, by using one of the following libcurl options to alter how connections are or are not reused: `CURLOPT_FRESH_CONNECT`, `CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the curl_multi API).
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Affected: 7.13.2 , ≤ 7.13.2 (semver)
Affected: 7.13.1 , ≤ 7.13.1 (semver)
Affected: 7.13.0 , ≤ 7.13.0 (semver)
Affected: 7.12.3 , ≤ 7.12.3 (semver)
Affected: 7.12.2 , ≤ 7.12.2 (semver)
Affected: 7.12.1 , ≤ 7.12.1 (semver)
Affected: 7.12.0 , ≤ 7.12.0 (semver)
Affected: 7.11.2 , ≤ 7.11.2 (semver)
Affected: 7.11.1 , ≤ 7.11.1 (semver)
Affected: 7.11.0 , ≤ 7.11.0 (semver)
Affected: 7.10.8 , ≤ 7.10.8 (semver)
Affected: 7.10.7 , ≤ 7.10.7 (semver)
Affected: 7.10.6 , ≤ 7.10.6 (semver)
Create a notification for this product.
Credits
Zhicheng Chen Daniel Stenberg
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-1965",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-11T14:31:56.061598Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-305",
                "description": "CWE-305 Authentication Bypass by Primary Weakness",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-11T14:32:38.895Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.1",
              "status": "affected",
              "version": "8.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
              "version": "8.11.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.0",
              "status": "affected",
              "version": "8.9.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.1",
              "status": "affected",
              "version": "8.7.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.0",
              "status": "affected",
              "version": "8.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.6.0",
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              "version": "7.10.6",
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          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Zhicheng Chen"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libcurl can in some circumstances reuse the wrong connection when asked to do\nan Negotiate-authenticated HTTP or HTTPS request.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criterion must first be met. Due to a\nlogical error in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials. One underlying reason being that\nNegotiate sometimes authenticates *connections* and not *requests*, contrary\nto how HTTP is designed to work.\n\nAn application that allows Negotiate authentication to a server (that responds\nwanting Negotiate) with `user1:password1` and then does another operation to\nthe same server also using Negotiate but with `user2:password2` (while the\nprevious connection is still alive) - the second request wrongly reused the\nsame connection and since it then sees that the Negotiate negotiation is\nalready made, it just sends the request over that connection thinking it uses\nthe user2 credentials when it is in fact still using the connection\nauthenticated for user1...\n\nThe set of authentication methods to use is set with  `CURLOPT_HTTPAUTH`.\n\nApplications can disable libcurl\u0027s reuse of connections and thus mitigate this\nproblem, by using one of the following libcurl options to alter how\nconnections are or are not reused: `CURLOPT_FRESH_CONNECT`,\n`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the\ncurl_multi API)."
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          "name": "www",
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      "title": "bad reuse of HTTP Negotiate connection"
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CVE-2025-11563 (GCVE-0-2025-11563)

Vulnerability from nvd – Published: 2026-02-25 07:20 – Updated: 2026-02-25 18:53
VLAI
Title
wcurl path traversal with percent-encoded slashes
Summary
URLs containing percent-encoded slashes (`/` or `\`) can trick wcurl into saving the output file outside of the current directory without the user explicitly asking for it. This flaw only affects the wcurl command line tool.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Create a notification for this product.
Credits
Stanislav Fort (Aisle Research) Samuel Henrique Sergio Durigan Junior Xi Ruoyao
Show details on NVD website

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CVE-2025-15224 (GCVE-0-2025-15224)

Vulnerability from nvd – Published: 2026-01-08 10:08 – Updated: 2026-01-08 14:39
VLAI
Title
libssh key passphrase bypass without agent set
Summary
When doing SSH-based transfers using either SCP or SFTP, and asked to do public key authentication, curl would wrongly still ask and authenticate using a locally running SSH agent.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Create a notification for this product.
Credits
Harry Sintonen Harry Sintonen
Show details on NVD website

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      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Harry Sintonen"
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        {
          "name": "issue",
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      "title": "libssh key passphrase bypass without agent set"
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    "dateUpdated": "2026-01-08T14:39:55.278Z",
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CVE-2025-15079 (GCVE-0-2025-15079)

Vulnerability from nvd – Published: 2026-01-08 10:08 – Updated: 2026-01-08 14:46
VLAI
Title
libssh global known_hosts override
Summary
When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts *not present* in the specified file if they were added as recognized in the libssh *global* known_hosts file.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Create a notification for this product.
Credits
Harry Sintonen Daniel Stenberg
Show details on NVD website

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              "lessThanOrEqual": "7.68.0",
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              "version": "7.68.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.67.0",
              "status": "affected",
              "version": "7.67.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.66.0",
              "status": "affected",
              "version": "7.66.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.3",
              "status": "affected",
              "version": "7.65.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.2",
              "status": "affected",
              "version": "7.65.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.1",
              "status": "affected",
              "version": "7.65.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.0",
              "status": "affected",
              "version": "7.65.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.1",
              "status": "affected",
              "version": "7.64.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.0",
              "status": "affected",
              "version": "7.64.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.63.0",
              "status": "affected",
              "version": "7.63.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.62.0",
              "status": "affected",
              "version": "7.62.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.1",
              "status": "affected",
              "version": "7.61.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.0",
              "status": "affected",
              "version": "7.61.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.60.0",
              "status": "affected",
              "version": "7.60.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.59.0",
              "status": "affected",
              "version": "7.59.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.58.0",
              "status": "affected",
              "version": "7.58.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Harry Sintonen"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When doing SSH-based transfers using either SCP or SFTP, and setting the\nknown_hosts file, libcurl could still mistakenly accept connecting to hosts\n*not present* in the specified file if they were added as recognized in the\nlibssh *global* known_hosts file."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-297 Improper Validation of Certificate with Host Mismatch",
              "lang": "en"
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-08T10:08:13.410Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
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        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2025-15079.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2025-15079.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3477116"
        }
      ],
      "title": "libssh global known_hosts override"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
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    "datePublished": "2026-01-08T10:08:13.410Z",
    "dateReserved": "2025-12-24T22:18:18.481Z",
    "dateUpdated": "2026-01-08T14:46:47.042Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-7168 (GCVE-0-2026-7168)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:29 – Updated: 2026-05-13 14:18
VLAI
Title
cross-proxy Digest auth state leak
Summary
Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Affected: 7.13.2 , ≤ 7.13.2 (semver)
Affected: 7.13.1 , ≤ 7.13.1 (semver)
Affected: 7.13.0 , ≤ 7.13.0 (semver)
Affected: 7.12.3 , ≤ 7.12.3 (semver)
Affected: 7.12.2 , ≤ 7.12.2 (semver)
Affected: 7.12.1 , ≤ 7.12.1 (semver)
Affected: 7.12.0 , ≤ 7.12.0 (semver)
Create a notification for this product.
Credits
Muhamad Arga Reksapati Daniel Stenberg
Show details on NVD website

{
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          "shortName": "CVE"
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        "references": [
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            "url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
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        "title": "CVE Program Container"
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        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
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              "userInteraction": "NONE",
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              "lessThanOrEqual": "8.18.0",
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              "lessThanOrEqual": "8.14.1",
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              "lessThanOrEqual": "8.12.1",
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              "lessThanOrEqual": "8.12.0",
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              "lessThanOrEqual": "8.11.1",
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              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.0",
              "status": "affected",
              "version": "8.9.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.1",
              "status": "affected",
              "version": "8.7.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.0",
              "status": "affected",
              "version": "8.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.4.0",
              "status": "affected",
              "version": "8.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.3.0",
              "status": "affected",
              "version": "8.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.1",
              "status": "affected",
              "version": "8.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.0",
              "status": "affected",
              "version": "8.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "8.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.1",
              "status": "affected",
              "version": "8.1.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.0",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.1",
              "status": "affected",
              "version": "8.0.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.0",
              "status": "affected",
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            {
              "lessThanOrEqual": "7.88.1",
              "status": "affected",
              "version": "7.88.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.0",
              "status": "affected",
              "version": "7.88.0",
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            },
            {
              "lessThanOrEqual": "7.87.0",
              "status": "affected",
              "version": "7.87.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.86.0",
              "status": "affected",
              "version": "7.86.0",
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            },
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              "lessThanOrEqual": "7.85.0",
              "status": "affected",
              "version": "7.85.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.1",
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      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Muhamad Arga Reksapati"
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        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
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      ],
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          "lang": "en",
          "value": "Successfully using libcurl to do a transfer over a specific HTTP proxy\n(`proxyA`) with **Digest** authentication and then changing the proxy host to\na second one (`proxyB`) for a second transfer, reusing the same handle, makes\nlibcurl wrongly pass on the `Proxy-Authorization:` header field meant for\n`proxyA`, to `proxyB`."
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      "providerMetadata": {
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        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
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          "name": "json",
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        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-7168.html"
        },
        {
          "name": "issue",
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        }
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      "title": "cross-proxy Digest auth state leak"
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    "assignerShortName": "curl",
    "cveId": "CVE-2026-7168",
    "datePublished": "2026-05-13T08:29:08.900Z",
    "dateReserved": "2026-04-27T07:37:37.172Z",
    "dateUpdated": "2026-05-13T14:18:13.718Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-7009 (GCVE-0-2026-7009)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:28 – Updated: 2026-05-13 14:20
VLAI
Title
OCSP stapling bypass with Apple SecTrust
Summary
When curl is told to use the Certificate Status Request TLS extension, often referred to as *OCSP stapling*, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Create a notification for this product.
Credits
Carlos Carrillo Stefan Eissing
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-13T09:05:48.665Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/29/12"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-7009",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T14:20:11.436717Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T14:20:33.908Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
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            ],
            "url": "https://hackerone.com/reports/3694390"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
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              "status": "affected",
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              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            }
          ]
        }
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      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Carlos Carrillo"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Stefan Eissing"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When curl is told to use the Certificate Status Request TLS extension, often\nreferred to as *OCSP stapling*, to verify that the server certificate is\nvalid, it fails to detect OCSP problems and instead wrongly consider the\nresponse as fine."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-295 Improper Certificate Validation",
              "lang": "en"
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      "providerMetadata": {
        "dateUpdated": "2026-05-13T08:28:53.697Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
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        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3694390"
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      ],
      "title": "OCSP stapling bypass with Apple SecTrust"
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  },
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    "datePublished": "2026-05-13T08:28:53.697Z",
    "dateReserved": "2026-04-25T08:37:24.989Z",
    "dateUpdated": "2026-05-13T14:20:33.908Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-6429 (GCVE-0-2026-6429)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:28 – Updated: 2026-05-13 14:03
VLAI
Title
netrc credential leak with reused proxy connection
Summary
When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Create a notification for this product.
Credits
Muhamad Arga Reksapati Daniel Stenberg
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 5.3,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-6429",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T14:03:52.312824Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T14:03:55.343Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.19.0",
              "status": "affected",
              "version": "8.19.0",
              "versionType": "semver"
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              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.1",
              "status": "affected",
              "version": "8.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
              "version": "8.11.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
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              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
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              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "8.9.0",
              "status": "affected",
              "version": "8.9.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.1",
              "status": "affected",
              "version": "8.7.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.0",
              "status": "affected",
              "version": "8.7.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.4.0",
              "status": "affected",
              "version": "8.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.3.0",
              "status": "affected",
              "version": "8.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.1",
              "status": "affected",
              "version": "8.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.0",
              "status": "affected",
              "version": "8.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "8.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.1",
              "status": "affected",
              "version": "8.1.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.0",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.1",
              "status": "affected",
              "version": "8.0.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.0",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.1",
              "status": "affected",
              "version": "7.88.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.0",
              "status": "affected",
              "version": "7.88.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.87.0",
              "status": "affected",
              "version": "7.87.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.86.0",
              "status": "affected",
              "version": "7.86.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.85.0",
              "status": "affected",
              "version": "7.85.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.1",
              "status": "affected",
              "version": "7.83.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.0",
              "status": "affected",
              "version": "7.83.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.82.0",
              "status": "affected",
              "version": "7.82.0",
              "versionType": "semver"
            },
            {
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Muhamad Arga Reksapati"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When asked to both use a `.netrc` file for credentials and to follow HTTP\nredirects, libcurl could leak the password used for the first host to the\nfollowed-to host under certain circumstances."
        }
      ],
      "problemTypes": [
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            {
              "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en"
            }
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      "providerMetadata": {
        "dateUpdated": "2026-05-13T08:28:36.166Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-6429.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-6429.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3677759"
        }
      ],
      "title": "netrc credential leak with reused proxy connection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-6429",
    "datePublished": "2026-05-13T08:28:36.166Z",
    "dateReserved": "2026-04-16T14:48:02.991Z",
    "dateUpdated": "2026-05-13T14:03:55.343Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-6276 (GCVE-0-2026-6276)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:28 – Updated: 2026-05-13 17:26
VLAI
Title
stale custom cookie host causes cookie leak
Summary
Using libcurl, when a custom `Host:` header is first set for an HTTP request and a second request is subsequently done using the same *easy handle* but without the custom `Host:` header set, the second request would use stale information and pass on cookies meant for the first host in the second request. Leak them.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Create a notification for this product.
Credits
Muhamad Arga Reksapati Daniel Stenberg
Show details on NVD website

{
  "containers": {
    "adp": [
      {
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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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                  {
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                "timestamp": "2026-05-13T17:24:29.094167Z",
                "version": "2.0.3"
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        ],
        "title": "CISA ADP Vulnrichment"
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    "cna": {
      "affected": [
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          "product": "curl",
          "vendor": "curl",
          "versions": [
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              "lessThanOrEqual": "8.19.0",
              "status": "affected",
              "version": "8.19.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
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              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.1",
              "status": "affected",
              "version": "8.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
              "version": "8.11.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.0",
              "status": "affected",
              "version": "8.11.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.0",
              "status": "affected",
              "version": "8.9.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.1",
              "status": "affected",
              "version": "8.7.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.7.0",
              "status": "affected",
              "version": "8.7.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.4.0",
              "status": "affected",
              "version": "8.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.3.0",
              "status": "affected",
              "version": "8.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.1",
              "status": "affected",
              "version": "8.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.0",
              "status": "affected",
              "version": "8.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "8.1.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.1",
              "status": "affected",
              "version": "8.1.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.1.0",
              "status": "affected",
              "version": "8.1.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.1",
              "status": "affected",
              "version": "8.0.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.0.0",
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.1",
              "status": "affected",
              "version": "7.88.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.88.0",
              "status": "affected",
              "version": "7.88.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.87.0",
              "status": "affected",
              "version": "7.87.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.86.0",
              "status": "affected",
              "version": "7.86.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.85.0",
              "status": "affected",
              "version": "7.85.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.1",
              "status": "affected",
              "version": "7.83.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.0",
              "status": "affected",
              "version": "7.83.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.82.0",
              "status": "affected",
              "version": "7.82.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.81.0",
              "status": "affected",
              "version": "7.81.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.80.0",
              "status": "affected",
              "version": "7.80.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.79.1",
              "status": "affected",
              "version": "7.79.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.79.0",
              "status": "affected",
              "version": "7.79.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.78.0",
              "status": "affected",
              "version": "7.78.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.77.0",
              "status": "affected",
              "version": "7.77.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.76.1",
              "status": "affected",
              "version": "7.76.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.76.0",
              "status": "affected",
              "version": "7.76.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.75.0",
              "status": "affected",
              "version": "7.75.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.74.0",
              "status": "affected",
              "version": "7.74.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.73.0",
              "status": "affected",
              "version": "7.73.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.72.0",
              "status": "affected",
              "version": "7.72.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.1",
              "status": "affected",
              "version": "7.71.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.0",
              "status": "affected",
              "version": "7.71.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Muhamad Arga Reksapati"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Using libcurl, when a custom `Host:` header is first set for an HTTP request\nand a second request is subsequently done using the same *easy handle* but\nwithout the custom `Host:` header set, the second request would use stale\ninformation and pass on cookies meant for the first host in the second\nrequest. Leak them."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-346 Origin Validation Error",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T08:28:19.273Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-6276.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-6276.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3671818"
        }
      ],
      "title": "stale custom cookie host causes cookie leak"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-6276",
    "datePublished": "2026-05-13T08:28:19.273Z",
    "dateReserved": "2026-04-14T14:01:54.772Z",
    "dateUpdated": "2026-05-13T17:26:06.894Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-6253 (GCVE-0-2026-6253)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:28 – Updated: 2026-05-13 17:42
VLAI
Title
proxy credentials leak over redirect-to proxy
Summary
curl might erroneously pass on credentials for a first proxy to a second proxy. This can happen when the following conditions are true: 1. curl is setup to use specific different proxies for different URL schemes 2. the first proxy needs credentials 3. the second proxy uses no credentials 4. while using the first proxy (using say `http://`), curl is asked to follow a redirect to a URL using another scheme (say `https://`), accessed using a second, different, proxy
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Create a notification for this product.
Credits
Dwij Mehta (O2 Lab Texas A&M University) Daniel Stenberg
Show details on NVD website

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          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/29/11"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 5.9,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
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          {
            "other": {
              "content": {
                "id": "CVE-2026-6253",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T17:42:30.813126Z",
                "version": "2.0.3"
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        "references": [
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            "tags": [
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            "url": "https://hackerone.com/reports/3669637"
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        "title": "CISA ADP Vulnrichment"
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              "lessThanOrEqual": "8.1.2",
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              "lessThanOrEqual": "8.1.1",
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              "lessThanOrEqual": "8.1.0",
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              "lessThanOrEqual": "8.0.1",
              "status": "affected",
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              "lessThanOrEqual": "8.0.0",
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              "lessThanOrEqual": "7.88.1",
              "status": "affected",
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          "type": "finder",
          "value": "Dwij Mehta (O2 Lab"
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CVE-2026-5773 (GCVE-0-2026-5773)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:27 – Updated: 2026-05-13 17:45
VLAI
Title
wrong reuse of SMB connection
Summary
libcurl might in some circumstances reuse the wrong connection for SMB(S) transfers. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the code, a network transfer operation that was requested by an application could wrongfully reuse an existing SMB connection to the same server that was using a different 'share' than the new subsequent transfer should. This could in unlucky situations lead to the download of the wrong file or the upload of a file to the wrong place. When this happens, the same credentials are used and the server name is the same.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Create a notification for this product.
Credits
Osama Hamad Daniel Stenberg
Show details on NVD website

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            {
              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.1",
              "status": "affected",
              "version": "7.83.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.0",
              "status": "affected",
              "version": "7.83.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.82.0",
              "status": "affected",
              "version": "7.82.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.81.0",
              "status": "affected",
              "version": "7.81.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.80.0",
              "status": "affected",
              "version": "7.80.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.79.1",
              "status": "affected",
              "version": "7.79.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.79.0",
              "status": "affected",
              "version": "7.79.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.78.0",
              "status": "affected",
              "version": "7.78.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.77.0",
              "status": "affected",
              "version": "7.77.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.76.1",
              "status": "affected",
              "version": "7.76.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.76.0",
              "status": "affected",
              "version": "7.76.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.75.0",
              "status": "affected",
              "version": "7.75.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.74.0",
              "status": "affected",
              "version": "7.74.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.73.0",
              "status": "affected",
              "version": "7.73.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.72.0",
              "status": "affected",
              "version": "7.72.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.1",
              "status": "affected",
              "version": "7.71.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.0",
              "status": "affected",
              "version": "7.71.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.70.0",
              "status": "affected",
              "version": "7.70.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.69.1",
              "status": "affected",
              "version": "7.69.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.69.0",
              "status": "affected",
              "version": "7.69.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.68.0",
              "status": "affected",
              "version": "7.68.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.67.0",
              "status": "affected",
              "version": "7.67.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.66.0",
              "status": "affected",
              "version": "7.66.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.3",
              "status": "affected",
              "version": "7.65.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.2",
              "status": "affected",
              "version": "7.65.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.1",
              "status": "affected",
              "version": "7.65.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.0",
              "status": "affected",
              "version": "7.65.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.1",
              "status": "affected",
              "version": "7.64.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.0",
              "status": "affected",
              "version": "7.64.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.63.0",
              "status": "affected",
              "version": "7.63.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.62.0",
              "status": "affected",
              "version": "7.62.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.1",
              "status": "affected",
              "version": "7.61.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.0",
              "status": "affected",
              "version": "7.61.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.60.0",
              "status": "affected",
              "version": "7.60.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.59.0",
              "status": "affected",
              "version": "7.59.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.58.0",
              "status": "affected",
              "version": "7.58.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.57.0",
              "status": "affected",
              "version": "7.57.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.56.1",
              "status": "affected",
              "version": "7.56.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.56.0",
              "status": "affected",
              "version": "7.56.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.55.1",
              "status": "affected",
              "version": "7.55.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.55.0",
              "status": "affected",
              "version": "7.55.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.54.1",
              "status": "affected",
              "version": "7.54.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.54.0",
              "status": "affected",
              "version": "7.54.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.53.1",
              "status": "affected",
              "version": "7.53.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.53.0",
              "status": "affected",
              "version": "7.53.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.1",
              "status": "affected",
              "version": "7.52.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.0",
              "status": "affected",
              "version": "7.52.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.51.0",
              "status": "affected",
              "version": "7.51.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.3",
              "status": "affected",
              "version": "7.50.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.2",
              "status": "affected",
              "version": "7.50.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.1",
              "status": "affected",
              "version": "7.50.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.0",
              "status": "affected",
              "version": "7.50.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.1",
              "status": "affected",
              "version": "7.49.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.0",
              "status": "affected",
              "version": "7.49.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.48.0",
              "status": "affected",
              "version": "7.48.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.1",
              "status": "affected",
              "version": "7.47.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.0",
              "status": "affected",
              "version": "7.47.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.46.0",
              "status": "affected",
              "version": "7.46.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.45.0",
              "status": "affected",
              "version": "7.45.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.44.0",
              "status": "affected",
              "version": "7.44.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.43.0",
              "status": "affected",
              "version": "7.43.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.1",
              "status": "affected",
              "version": "7.42.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.0",
              "status": "affected",
              "version": "7.42.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.41.0",
              "status": "affected",
              "version": "7.41.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.40.0",
              "status": "affected",
              "version": "7.40.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Osama Hamad"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libcurl might in some circumstances reuse the wrong connection for SMB(S)\ntransfers.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criteria must be met. Due to a logical\nerror in the code, a network transfer operation that was requested by an\napplication could wrongfully reuse an existing SMB connection to the same\nserver that was using a different \u0027share\u0027 than the new subsequent transfer\nshould.\n\nThis could in unlucky situations lead to the download of the wrong file or the\nupload of a file to the wrong place. When this happens, the same credentials\nare used and the server name is the same."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-488 Exposure of Data Element to Wrong Session",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T08:27:42.342Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-5773.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-5773.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3650689"
        }
      ],
      "title": "wrong reuse of SMB connection"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-5773",
    "datePublished": "2026-05-13T08:27:42.342Z",
    "dateReserved": "2026-04-08T06:51:05.356Z",
    "dateUpdated": "2026-05-13T17:45:08.173Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-5545 (GCVE-0-2026-5545)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:27 – Updated: 2026-05-13 17:46
VLAI
Title
wrong reuse of HTTP Negotiate connection
Summary
libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTP(S) request after a Negotiate-authenticated one, when both use the same host. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criteria must be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different credentials. An application that first uses Negotiate authentication to a server with `user1:password1` and then does another operation to the same server asking for any authentication method but for `user2:password2` (while the previous connection is still alive) - the second request gets confused and wrongly reuses the same connection and sends the new request over that connection thinking it uses a mix of user1's and user2's credentials when it is in fact still using the connection authenticated for user1...
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Affected: 7.13.2 , ≤ 7.13.2 (semver)
Affected: 7.13.1 , ≤ 7.13.1 (semver)
Affected: 7.13.0 , ≤ 7.13.0 (semver)
Affected: 7.12.3 , ≤ 7.12.3 (semver)
Affected: 7.12.2 , ≤ 7.12.2 (semver)
Affected: 7.12.1 , ≤ 7.12.1 (semver)
Affected: 7.12.0 , ≤ 7.12.0 (semver)
Affected: 7.11.2 , ≤ 7.11.2 (semver)
Affected: 7.11.1 , ≤ 7.11.1 (semver)
Affected: 7.11.0 , ≤ 7.11.0 (semver)
Affected: 7.10.8 , ≤ 7.10.8 (semver)
Affected: 7.10.7 , ≤ 7.10.7 (semver)
Affected: 7.10.6 , ≤ 7.10.6 (semver)
Create a notification for this product.
Credits
Quac Tran and Ngoc Hieu Stefan Eissing
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "LOW",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-5545",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T17:46:36.115262Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T17:46:40.830Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://hackerone.com/reports/3642555"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "product": "curl",
          "vendor": "curl",
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              "lessThanOrEqual": "8.1.0",
              "status": "affected",
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              "lessThanOrEqual": "8.0.1",
              "status": "affected",
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              "lessThanOrEqual": "8.0.0",
              "status": "affected",
              "version": "8.0.0",
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            {
              "lessThanOrEqual": "7.88.1",
              "status": "affected",
              "version": "7.88.1",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.88.0",
              "status": "affected",
              "version": "7.88.0",
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            {
              "lessThanOrEqual": "7.87.0",
              "status": "affected",
              "version": "7.87.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.86.0",
              "status": "affected",
              "version": "7.86.0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.85.0",
              "status": "affected",
              "version": "7.85.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.84.0",
              "status": "affected",
              "version": "7.84.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.83.1",
              "status": "affected",
              "version": "7.83.1",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "7.83.0",
              "status": "affected",
              "version": "7.83.0",
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            {
              "lessThanOrEqual": "7.82.0",
              "status": "affected",
              "version": "7.82.0",
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            {
              "lessThanOrEqual": "7.81.0",
              "status": "affected",
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              "lessThanOrEqual": "7.80.0",
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              "status": "affected",
              "version": "7.16.2",
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            },
            {
              "lessThanOrEqual": "7.16.1",
              "status": "affected",
              "version": "7.16.1",
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              "status": "affected",
              "version": "7.16.0",
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CVE-2026-4873 (GCVE-0-2026-4873)

Vulnerability from cvelistv5 – Published: 2026-05-13 08:27 – Updated: 2026-05-13 19:30
VLAI
Title
connection reuse ignores TLS requirement
Summary
A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request to that same host bypasses the TLS requirement and instead transmit data unencrypted.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.19.0 , ≤ 8.19.0 (semver)
Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Create a notification for this product.
Credits
Arkadi Vainbrand Daniel Stenberg
Show details on NVD website

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CVE-2026-3805 (GCVE-0-2026-3805)

Vulnerability from cvelistv5 – Published: 2026-03-11 10:09 – Updated: 2026-03-11 15:45
VLAI
Title
use after free in SMB connection reuse
Summary
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Create a notification for this product.
Credits
Daniel Wade Stefan Eissing
Show details on NVD website

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                "role": "CISA Coordinator",
                "timestamp": "2026-03-11T15:45:10.217077Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-11T15:45:38.820Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
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              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
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            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
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            },
            {
              "lessThanOrEqual": "8.14.1",
              "status": "affected",
              "version": "8.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.14.0",
              "status": "affected",
              "version": "8.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.13.0",
              "status": "affected",
              "version": "8.13.0",
              "versionType": "semver"
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          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Daniel Wade"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Stefan Eissing"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When doing a second SMB request to the same host again, curl would wrongly use\na data pointer pointing into already freed memory."
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      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-416 Use After Free",
              "lang": "en"
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      "providerMetadata": {
        "dateUpdated": "2026-03-11T10:09:37.729Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-3805.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-3805.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3591944"
        }
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      "title": "use after free in SMB connection reuse"
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  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
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    "datePublished": "2026-03-11T10:09:37.729Z",
    "dateReserved": "2026-03-08T16:07:39.817Z",
    "dateUpdated": "2026-03-11T15:45:38.820Z",
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  "dataType": "CVE_RECORD",
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}

CVE-2026-3784 (GCVE-0-2026-3784)

Vulnerability from cvelistv5 – Published: 2026-03-11 10:09 – Updated: 2026-06-02 13:00
VLAI
Title
wrong proxy connection reuse with credentials
Summary
curl would wrongly reuse an existing HTTP proxy connection doing CONNECT to a server, even if the new request uses different credentials for the HTTP proxy. The proper behavior is to create or use a separate connection.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Affected: 7.13.2 , ≤ 7.13.2 (semver)
Affected: 7.13.1 , ≤ 7.13.1 (semver)
Affected: 7.13.0 , ≤ 7.13.0 (semver)
Affected: 7.12.3 , ≤ 7.12.3 (semver)
Affected: 7.12.2 , ≤ 7.12.2 (semver)
Affected: 7.12.1 , ≤ 7.12.1 (semver)
Affected: 7.12.0 , ≤ 7.12.0 (semver)
Affected: 7.11.2 , ≤ 7.11.2 (semver)
Affected: 7.11.1 , ≤ 7.11.1 (semver)
Affected: 7.11.0 , ≤ 7.11.0 (semver)
Affected: 7.10.8 , ≤ 7.10.8 (semver)
Affected: 7.10.7 , ≤ 7.10.7 (semver)
Affected: 7.10.6 , ≤ 7.10.6 (semver)
Affected: 7.10.5 , ≤ 7.10.5 (semver)
Affected: 7.10.4 , ≤ 7.10.4 (semver)
Affected: 7.10.3 , ≤ 7.10.3 (semver)
Affected: 7.10.2 , ≤ 7.10.2 (semver)
Affected: 7.10.1 , ≤ 7.10.1 (semver)
Affected: 7.10 , ≤ 7.10 (semver)
Affected: 7.9.8 , ≤ 7.9.8 (semver)
Affected: 7.9.7 , ≤ 7.9.7 (semver)
Affected: 7.9.6 , ≤ 7.9.6 (semver)
Affected: 7.9.5 , ≤ 7.9.5 (semver)
Affected: 7.9.4 , ≤ 7.9.4 (semver)
Affected: 7.9.3 , ≤ 7.9.3 (semver)
Affected: 7.9.2 , ≤ 7.9.2 (semver)
Affected: 7.9.1 , ≤ 7.9.1 (semver)
Affected: 7.9 , ≤ 7.9 (semver)
Affected: 7.8.1 , ≤ 7.8.1 (semver)
Affected: 7.8 , ≤ 7.8 (semver)
Affected: 7.7.3 , ≤ 7.7.3 (semver)
Affected: 7.7.2 , ≤ 7.7.2 (semver)
Affected: 7.7.1 , ≤ 7.7.1 (semver)
Affected: 7.7 , ≤ 7.7 (semver)
Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V4.0 (custom)
Create a notification for this product.
Credits
Muhamad Arga Reksapati (HackerOne: nobcoder) Stefan Eissing
Show details on NVD website

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          "versions": [
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            {
              "lessThanOrEqual": "8.17.0",
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              "lessThanOrEqual": "8.13.0",
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              "lessThanOrEqual": "8.12.1",
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              "lessThanOrEqual": "8.12.0",
              "status": "affected",
              "version": "8.12.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.11.1",
              "status": "affected",
              "version": "8.11.1",
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            },
            {
              "lessThanOrEqual": "8.11.0",
              "status": "affected",
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              "lessThanOrEqual": "8.10.1",
              "status": "affected",
              "version": "8.10.1",
              "versionType": "semver"
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              "lessThanOrEqual": "8.10.0",
              "status": "affected",
              "version": "8.10.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.9.1",
              "status": "affected",
              "version": "8.9.1",
              "versionType": "semver"
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              "lessThanOrEqual": "8.9.0",
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              "lessThanOrEqual": "8.8.0",
              "status": "affected",
              "version": "8.8.0",
              "versionType": "semver"
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              "lessThanOrEqual": "8.7.1",
              "status": "affected",
              "version": "8.7.1",
              "versionType": "semver"
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              "status": "affected",
              "version": "8.7.0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "8.6.0",
              "status": "affected",
              "version": "8.6.0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "8.5.0",
              "status": "affected",
              "version": "8.5.0",
              "versionType": "semver"
            },
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              "status": "affected",
              "version": "8.4.0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "8.3.0",
              "status": "affected",
              "version": "8.3.0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "8.2.1",
              "status": "affected",
              "version": "8.2.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.2.0",
              "status": "affected",
              "version": "8.2.0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "8.1.2",
              "status": "affected",
              "version": "8.1.2",
              "versionType": "semver"
            },
            {
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              "status": "affected",
              "version": "7.10.3",
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              "lessThanOrEqual": "7.10.2",
              "status": "affected",
              "version": "7.10.2",
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              "lessThanOrEqual": "7.10.1",
              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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              "lessThanOrEqual": "7.9.7",
              "status": "affected",
              "version": "7.9.7",
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              "lessThanOrEqual": "7.9.6",
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              "lessThanOrEqual": "7.9.2",
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CVE-2026-3783 (GCVE-0-2026-3783)

Vulnerability from cvelistv5 – Published: 2026-03-11 10:09 – Updated: 2026-03-11 14:26
VLAI
Title
token leak with redirect and netrc
Summary
When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer performs a redirect to a second URL, curl could leak that token to the second hostname under some circumstances. If the hostname that the first request is redirected to has information in the used .netrc file, with either of the `machine` or `default` keywords, curl would pass on the bearer token set for the first host also to the second one.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Create a notification for this product.
Credits
spectreglobalsec on hackerone Daniel Stenberg
Show details on NVD website

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              "lessThanOrEqual": "7.71.1",
              "status": "affected",
              "version": "7.71.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.71.0",
              "status": "affected",
              "version": "7.71.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.70.0",
              "status": "affected",
              "version": "7.70.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.69.1",
              "status": "affected",
              "version": "7.69.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.69.0",
              "status": "affected",
              "version": "7.69.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.68.0",
              "status": "affected",
              "version": "7.68.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.67.0",
              "status": "affected",
              "version": "7.67.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.66.0",
              "status": "affected",
              "version": "7.66.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.3",
              "status": "affected",
              "version": "7.65.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.2",
              "status": "affected",
              "version": "7.65.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.1",
              "status": "affected",
              "version": "7.65.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.65.0",
              "status": "affected",
              "version": "7.65.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.1",
              "status": "affected",
              "version": "7.64.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.64.0",
              "status": "affected",
              "version": "7.64.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.63.0",
              "status": "affected",
              "version": "7.63.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.62.0",
              "status": "affected",
              "version": "7.62.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.1",
              "status": "affected",
              "version": "7.61.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.61.0",
              "status": "affected",
              "version": "7.61.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.60.0",
              "status": "affected",
              "version": "7.60.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.59.0",
              "status": "affected",
              "version": "7.59.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.58.0",
              "status": "affected",
              "version": "7.58.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.57.0",
              "status": "affected",
              "version": "7.57.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.56.1",
              "status": "affected",
              "version": "7.56.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.56.0",
              "status": "affected",
              "version": "7.56.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.55.1",
              "status": "affected",
              "version": "7.55.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.55.0",
              "status": "affected",
              "version": "7.55.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.54.1",
              "status": "affected",
              "version": "7.54.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.54.0",
              "status": "affected",
              "version": "7.54.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.53.1",
              "status": "affected",
              "version": "7.53.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.53.0",
              "status": "affected",
              "version": "7.53.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.1",
              "status": "affected",
              "version": "7.52.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.52.0",
              "status": "affected",
              "version": "7.52.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.51.0",
              "status": "affected",
              "version": "7.51.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.3",
              "status": "affected",
              "version": "7.50.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.2",
              "status": "affected",
              "version": "7.50.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.1",
              "status": "affected",
              "version": "7.50.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.50.0",
              "status": "affected",
              "version": "7.50.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.1",
              "status": "affected",
              "version": "7.49.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.49.0",
              "status": "affected",
              "version": "7.49.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.48.0",
              "status": "affected",
              "version": "7.48.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.1",
              "status": "affected",
              "version": "7.47.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.47.0",
              "status": "affected",
              "version": "7.47.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.46.0",
              "status": "affected",
              "version": "7.46.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.45.0",
              "status": "affected",
              "version": "7.45.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.44.0",
              "status": "affected",
              "version": "7.44.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.43.0",
              "status": "affected",
              "version": "7.43.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.1",
              "status": "affected",
              "version": "7.42.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.42.0",
              "status": "affected",
              "version": "7.42.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.41.0",
              "status": "affected",
              "version": "7.41.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.40.0",
              "status": "affected",
              "version": "7.40.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.39.0",
              "status": "affected",
              "version": "7.39.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.38.0",
              "status": "affected",
              "version": "7.38.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.37.1",
              "status": "affected",
              "version": "7.37.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.37.0",
              "status": "affected",
              "version": "7.37.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.36.0",
              "status": "affected",
              "version": "7.36.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.35.0",
              "status": "affected",
              "version": "7.35.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.34.0",
              "status": "affected",
              "version": "7.34.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.33.0",
              "status": "affected",
              "version": "7.33.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "spectreglobalsec on hackerone"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When an OAuth2 bearer token is used for an HTTP(S) transfer, and that transfer\nperforms a redirect to a second URL, curl could leak that token to the second\nhostname under some circumstances.\n\nIf the hostname that the first request is redirected to has information in the\nused .netrc file, with either of the `machine` or `default` keywords, curl\nwould pass on the bearer token set for the first host also to the second one."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-522 Insufficiently Protected Credentials",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-11T10:09:08.746Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-3783.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-3783.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3583983"
        }
      ],
      "title": "token leak with redirect and netrc"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-3783",
    "datePublished": "2026-03-11T10:09:08.746Z",
    "dateReserved": "2026-03-08T05:09:09.891Z",
    "dateUpdated": "2026-03-11T14:26:10.788Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-1965 (GCVE-0-2026-1965)

Vulnerability from cvelistv5 – Published: 2026-03-11 10:08 – Updated: 2026-03-11 14:32
VLAI
Title
bad reuse of HTTP Negotiate connection
Summary
libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criterion must first be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different credentials. One underlying reason being that Negotiate sometimes authenticates *connections* and not *requests*, contrary to how HTTP is designed to work. An application that allows Negotiate authentication to a server (that responds wanting Negotiate) with `user1:password1` and then does another operation to the same server also using Negotiate but with `user2:password2` (while the previous connection is still alive) - the second request wrongly reused the same connection and since it then sees that the Negotiate negotiation is already made, it just sends the request over that connection thinking it uses the user2 credentials when it is in fact still using the connection authenticated for user1... The set of authentication methods to use is set with `CURLOPT_HTTPAUTH`. Applications can disable libcurl's reuse of connections and thus mitigate this problem, by using one of the following libcurl options to alter how connections are or are not reused: `CURLOPT_FRESH_CONNECT`, `CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the curl_multi API).
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , ≤ 8.18.0 (semver)
Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Affected: 7.57.0 , ≤ 7.57.0 (semver)
Affected: 7.56.1 , ≤ 7.56.1 (semver)
Affected: 7.56.0 , ≤ 7.56.0 (semver)
Affected: 7.55.1 , ≤ 7.55.1 (semver)
Affected: 7.55.0 , ≤ 7.55.0 (semver)
Affected: 7.54.1 , ≤ 7.54.1 (semver)
Affected: 7.54.0 , ≤ 7.54.0 (semver)
Affected: 7.53.1 , ≤ 7.53.1 (semver)
Affected: 7.53.0 , ≤ 7.53.0 (semver)
Affected: 7.52.1 , ≤ 7.52.1 (semver)
Affected: 7.52.0 , ≤ 7.52.0 (semver)
Affected: 7.51.0 , ≤ 7.51.0 (semver)
Affected: 7.50.3 , ≤ 7.50.3 (semver)
Affected: 7.50.2 , ≤ 7.50.2 (semver)
Affected: 7.50.1 , ≤ 7.50.1 (semver)
Affected: 7.50.0 , ≤ 7.50.0 (semver)
Affected: 7.49.1 , ≤ 7.49.1 (semver)
Affected: 7.49.0 , ≤ 7.49.0 (semver)
Affected: 7.48.0 , ≤ 7.48.0 (semver)
Affected: 7.47.1 , ≤ 7.47.1 (semver)
Affected: 7.47.0 , ≤ 7.47.0 (semver)
Affected: 7.46.0 , ≤ 7.46.0 (semver)
Affected: 7.45.0 , ≤ 7.45.0 (semver)
Affected: 7.44.0 , ≤ 7.44.0 (semver)
Affected: 7.43.0 , ≤ 7.43.0 (semver)
Affected: 7.42.1 , ≤ 7.42.1 (semver)
Affected: 7.42.0 , ≤ 7.42.0 (semver)
Affected: 7.41.0 , ≤ 7.41.0 (semver)
Affected: 7.40.0 , ≤ 7.40.0 (semver)
Affected: 7.39.0 , ≤ 7.39.0 (semver)
Affected: 7.38.0 , ≤ 7.38.0 (semver)
Affected: 7.37.1 , ≤ 7.37.1 (semver)
Affected: 7.37.0 , ≤ 7.37.0 (semver)
Affected: 7.36.0 , ≤ 7.36.0 (semver)
Affected: 7.35.0 , ≤ 7.35.0 (semver)
Affected: 7.34.0 , ≤ 7.34.0 (semver)
Affected: 7.33.0 , ≤ 7.33.0 (semver)
Affected: 7.32.0 , ≤ 7.32.0 (semver)
Affected: 7.31.0 , ≤ 7.31.0 (semver)
Affected: 7.30.0 , ≤ 7.30.0 (semver)
Affected: 7.29.0 , ≤ 7.29.0 (semver)
Affected: 7.28.1 , ≤ 7.28.1 (semver)
Affected: 7.28.0 , ≤ 7.28.0 (semver)
Affected: 7.27.0 , ≤ 7.27.0 (semver)
Affected: 7.26.0 , ≤ 7.26.0 (semver)
Affected: 7.25.0 , ≤ 7.25.0 (semver)
Affected: 7.24.0 , ≤ 7.24.0 (semver)
Affected: 7.23.1 , ≤ 7.23.1 (semver)
Affected: 7.23.0 , ≤ 7.23.0 (semver)
Affected: 7.22.0 , ≤ 7.22.0 (semver)
Affected: 7.21.7 , ≤ 7.21.7 (semver)
Affected: 7.21.6 , ≤ 7.21.6 (semver)
Affected: 7.21.5 , ≤ 7.21.5 (semver)
Affected: 7.21.4 , ≤ 7.21.4 (semver)
Affected: 7.21.3 , ≤ 7.21.3 (semver)
Affected: 7.21.2 , ≤ 7.21.2 (semver)
Affected: 7.21.1 , ≤ 7.21.1 (semver)
Affected: 7.21.0 , ≤ 7.21.0 (semver)
Affected: 7.20.1 , ≤ 7.20.1 (semver)
Affected: 7.20.0 , ≤ 7.20.0 (semver)
Affected: 7.19.7 , ≤ 7.19.7 (semver)
Affected: 7.19.6 , ≤ 7.19.6 (semver)
Affected: 7.19.5 , ≤ 7.19.5 (semver)
Affected: 7.19.4 , ≤ 7.19.4 (semver)
Affected: 7.19.3 , ≤ 7.19.3 (semver)
Affected: 7.19.2 , ≤ 7.19.2 (semver)
Affected: 7.19.1 , ≤ 7.19.1 (semver)
Affected: 7.19.0 , ≤ 7.19.0 (semver)
Affected: 7.18.2 , ≤ 7.18.2 (semver)
Affected: 7.18.1 , ≤ 7.18.1 (semver)
Affected: 7.18.0 , ≤ 7.18.0 (semver)
Affected: 7.17.1 , ≤ 7.17.1 (semver)
Affected: 7.17.0 , ≤ 7.17.0 (semver)
Affected: 7.16.4 , ≤ 7.16.4 (semver)
Affected: 7.16.3 , ≤ 7.16.3 (semver)
Affected: 7.16.2 , ≤ 7.16.2 (semver)
Affected: 7.16.1 , ≤ 7.16.1 (semver)
Affected: 7.16.0 , ≤ 7.16.0 (semver)
Affected: 7.15.5 , ≤ 7.15.5 (semver)
Affected: 7.15.4 , ≤ 7.15.4 (semver)
Affected: 7.15.3 , ≤ 7.15.3 (semver)
Affected: 7.15.2 , ≤ 7.15.2 (semver)
Affected: 7.15.1 , ≤ 7.15.1 (semver)
Affected: 7.15.0 , ≤ 7.15.0 (semver)
Affected: 7.14.1 , ≤ 7.14.1 (semver)
Affected: 7.14.0 , ≤ 7.14.0 (semver)
Affected: 7.13.2 , ≤ 7.13.2 (semver)
Affected: 7.13.1 , ≤ 7.13.1 (semver)
Affected: 7.13.0 , ≤ 7.13.0 (semver)
Affected: 7.12.3 , ≤ 7.12.3 (semver)
Affected: 7.12.2 , ≤ 7.12.2 (semver)
Affected: 7.12.1 , ≤ 7.12.1 (semver)
Affected: 7.12.0 , ≤ 7.12.0 (semver)
Affected: 7.11.2 , ≤ 7.11.2 (semver)
Affected: 7.11.1 , ≤ 7.11.1 (semver)
Affected: 7.11.0 , ≤ 7.11.0 (semver)
Affected: 7.10.8 , ≤ 7.10.8 (semver)
Affected: 7.10.7 , ≤ 7.10.7 (semver)
Affected: 7.10.6 , ≤ 7.10.6 (semver)
Create a notification for this product.
Credits
Zhicheng Chen Daniel Stenberg
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Zhicheng Chen"
        },
        {
          "lang": "en",
          "type": "remediation developer",
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      ],
      "descriptions": [
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          "lang": "en",
          "value": "libcurl can in some circumstances reuse the wrong connection when asked to do\nan Negotiate-authenticated HTTP or HTTPS request.\n\nlibcurl features a pool of recent connections so that subsequent requests can\nreuse an existing connection to avoid overhead.\n\nWhen reusing a connection a range of criterion must first be met. Due to a\nlogical error in the code, a request that was issued by an application could\nwrongfully reuse an existing connection to the same server that was\nauthenticated using different credentials. One underlying reason being that\nNegotiate sometimes authenticates *connections* and not *requests*, contrary\nto how HTTP is designed to work.\n\nAn application that allows Negotiate authentication to a server (that responds\nwanting Negotiate) with `user1:password1` and then does another operation to\nthe same server also using Negotiate but with `user2:password2` (while the\nprevious connection is still alive) - the second request wrongly reused the\nsame connection and since it then sees that the Negotiate negotiation is\nalready made, it just sends the request over that connection thinking it uses\nthe user2 credentials when it is in fact still using the connection\nauthenticated for user1...\n\nThe set of authentication methods to use is set with  `CURLOPT_HTTPAUTH`.\n\nApplications can disable libcurl\u0027s reuse of connections and thus mitigate this\nproblem, by using one of the following libcurl options to alter how\nconnections are or are not reused: `CURLOPT_FRESH_CONNECT`,\n`CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the\ncurl_multi API)."
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          "name": "www",
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CVE-2025-11563 (GCVE-0-2025-11563)

Vulnerability from cvelistv5 – Published: 2026-02-25 07:20 – Updated: 2026-02-25 18:53
VLAI
Title
wcurl path traversal with percent-encoded slashes
Summary
URLs containing percent-encoded slashes (`/` or `\`) can trick wcurl into saving the output file outside of the current directory without the user explicitly asking for it. This flaw only affects the wcurl command line tool.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Create a notification for this product.
Credits
Stanislav Fort (Aisle Research) Samuel Henrique Sergio Durigan Junior Xi Ruoyao
Show details on NVD website

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CVE-2025-15224 (GCVE-0-2025-15224)

Vulnerability from cvelistv5 – Published: 2026-01-08 10:08 – Updated: 2026-01-08 14:39
VLAI
Title
libssh key passphrase bypass without agent set
Summary
When doing SSH-based transfers using either SCP or SFTP, and asked to do public key authentication, curl would wrongly still ask and authenticate using a locally running SSH agent.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Create a notification for this product.
Credits
Harry Sintonen Harry Sintonen
Show details on NVD website

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      "credits": [
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          "type": "finder",
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        {
          "name": "issue",
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      "title": "libssh key passphrase bypass without agent set"
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CVE-2025-15079 (GCVE-0-2025-15079)

Vulnerability from cvelistv5 – Published: 2026-01-08 10:08 – Updated: 2026-01-08 14:46
VLAI
Title
libssh global known_hosts override
Summary
When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts *not present* in the specified file if they were added as recognized in the libssh *global* known_hosts file.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
curl curl Affected: 8.17.0 , ≤ 8.17.0 (semver)
Affected: 8.16.0 , ≤ 8.16.0 (semver)
Affected: 8.15.0 , ≤ 8.15.0 (semver)
Affected: 8.14.1 , ≤ 8.14.1 (semver)
Affected: 8.14.0 , ≤ 8.14.0 (semver)
Affected: 8.13.0 , ≤ 8.13.0 (semver)
Affected: 8.12.1 , ≤ 8.12.1 (semver)
Affected: 8.12.0 , ≤ 8.12.0 (semver)
Affected: 8.11.1 , ≤ 8.11.1 (semver)
Affected: 8.11.0 , ≤ 8.11.0 (semver)
Affected: 8.10.1 , ≤ 8.10.1 (semver)
Affected: 8.10.0 , ≤ 8.10.0 (semver)
Affected: 8.9.1 , ≤ 8.9.1 (semver)
Affected: 8.9.0 , ≤ 8.9.0 (semver)
Affected: 8.8.0 , ≤ 8.8.0 (semver)
Affected: 8.7.1 , ≤ 8.7.1 (semver)
Affected: 8.7.0 , ≤ 8.7.0 (semver)
Affected: 8.6.0 , ≤ 8.6.0 (semver)
Affected: 8.5.0 , ≤ 8.5.0 (semver)
Affected: 8.4.0 , ≤ 8.4.0 (semver)
Affected: 8.3.0 , ≤ 8.3.0 (semver)
Affected: 8.2.1 , ≤ 8.2.1 (semver)
Affected: 8.2.0 , ≤ 8.2.0 (semver)
Affected: 8.1.2 , ≤ 8.1.2 (semver)
Affected: 8.1.1 , ≤ 8.1.1 (semver)
Affected: 8.1.0 , ≤ 8.1.0 (semver)
Affected: 8.0.1 , ≤ 8.0.1 (semver)
Affected: 8.0.0 , ≤ 8.0.0 (semver)
Affected: 7.88.1 , ≤ 7.88.1 (semver)
Affected: 7.88.0 , ≤ 7.88.0 (semver)
Affected: 7.87.0 , ≤ 7.87.0 (semver)
Affected: 7.86.0 , ≤ 7.86.0 (semver)
Affected: 7.85.0 , ≤ 7.85.0 (semver)
Affected: 7.84.0 , ≤ 7.84.0 (semver)
Affected: 7.83.1 , ≤ 7.83.1 (semver)
Affected: 7.83.0 , ≤ 7.83.0 (semver)
Affected: 7.82.0 , ≤ 7.82.0 (semver)
Affected: 7.81.0 , ≤ 7.81.0 (semver)
Affected: 7.80.0 , ≤ 7.80.0 (semver)
Affected: 7.79.1 , ≤ 7.79.1 (semver)
Affected: 7.79.0 , ≤ 7.79.0 (semver)
Affected: 7.78.0 , ≤ 7.78.0 (semver)
Affected: 7.77.0 , ≤ 7.77.0 (semver)
Affected: 7.76.1 , ≤ 7.76.1 (semver)
Affected: 7.76.0 , ≤ 7.76.0 (semver)
Affected: 7.75.0 , ≤ 7.75.0 (semver)
Affected: 7.74.0 , ≤ 7.74.0 (semver)
Affected: 7.73.0 , ≤ 7.73.0 (semver)
Affected: 7.72.0 , ≤ 7.72.0 (semver)
Affected: 7.71.1 , ≤ 7.71.1 (semver)
Affected: 7.71.0 , ≤ 7.71.0 (semver)
Affected: 7.70.0 , ≤ 7.70.0 (semver)
Affected: 7.69.1 , ≤ 7.69.1 (semver)
Affected: 7.69.0 , ≤ 7.69.0 (semver)
Affected: 7.68.0 , ≤ 7.68.0 (semver)
Affected: 7.67.0 , ≤ 7.67.0 (semver)
Affected: 7.66.0 , ≤ 7.66.0 (semver)
Affected: 7.65.3 , ≤ 7.65.3 (semver)
Affected: 7.65.2 , ≤ 7.65.2 (semver)
Affected: 7.65.1 , ≤ 7.65.1 (semver)
Affected: 7.65.0 , ≤ 7.65.0 (semver)
Affected: 7.64.1 , ≤ 7.64.1 (semver)
Affected: 7.64.0 , ≤ 7.64.0 (semver)
Affected: 7.63.0 , ≤ 7.63.0 (semver)
Affected: 7.62.0 , ≤ 7.62.0 (semver)
Affected: 7.61.1 , ≤ 7.61.1 (semver)
Affected: 7.61.0 , ≤ 7.61.0 (semver)
Affected: 7.60.0 , ≤ 7.60.0 (semver)
Affected: 7.59.0 , ≤ 7.59.0 (semver)
Affected: 7.58.0 , ≤ 7.58.0 (semver)
Create a notification for this product.
Credits
Harry Sintonen Daniel Stenberg
Show details on NVD website

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      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Harry Sintonen"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "When doing SSH-based transfers using either SCP or SFTP, and setting the\nknown_hosts file, libcurl could still mistakenly accept connecting to hosts\n*not present* in the specified file if they were added as recognized in the\nlibssh *global* known_hosts file."
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      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-297 Improper Validation of Certificate with Host Mismatch",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-08T10:08:13.410Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2025-15079.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2025-15079.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3477116"
        }
      ],
      "title": "libssh global known_hosts override"
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    "assignerShortName": "curl",
    "cveId": "CVE-2025-15079",
    "datePublished": "2026-01-08T10:08:13.410Z",
    "dateReserved": "2025-12-24T22:18:18.481Z",
    "dateUpdated": "2026-01-08T14:46:47.042Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}