Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-05-13 08:29 – Updated: 2026-05-13 14:18

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`.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-294 Authentication Bypass by Capture-replay

Assigner

curl

References

3 references

URL	Tags
https://curl.se/docs/CVE-2026-7168.json
https://curl.se/docs/CVE-2026-7168.html
https://hackerone.com/reports/3697719

Impacted products

1 product

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)

Credits

Muhamad Arga Reksapati Daniel Stenberg

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-13T09:05:54.907Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
          }
        ],
        "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-2026-7168",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-13T14:18:10.734219Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-13T14:18:13.718Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://hackerone.com/reports/3697719"
          }
        ],
        "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"
            },
            {
              "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"
            },
            {
              "lessThanOrEqual": "7.19.7",
              "status": "affected",
              "version": "7.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.19.6",
              "status": "affected",
              "version": "7.19.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.19.5",
              "status": "affected",
              "version": "7.19.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.19.4",
              "status": "affected",
              "version": "7.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.19.3",
              "status": "affected",
              "version": "7.19.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.19.2",
              "status": "affected",
              "version": "7.19.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.19.1",
              "status": "affected",
              "version": "7.19.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.19.0",
              "status": "affected",
              "version": "7.19.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.18.2",
              "status": "affected",
              "version": "7.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.18.1",
              "status": "affected",
              "version": "7.18.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.18.0",
              "status": "affected",
              "version": "7.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.17.1",
              "status": "affected",
              "version": "7.17.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.17.0",
              "status": "affected",
              "version": "7.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.16.4",
              "status": "affected",
              "version": "7.16.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.16.3",
              "status": "affected",
              "version": "7.16.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.16.2",
              "status": "affected",
              "version": "7.16.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.16.1",
              "status": "affected",
              "version": "7.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.16.0",
              "status": "affected",
              "version": "7.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.15.5",
              "status": "affected",
              "version": "7.15.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.15.4",
              "status": "affected",
              "version": "7.15.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.15.3",
              "status": "affected",
              "version": "7.15.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.15.2",
              "status": "affected",
              "version": "7.15.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.15.1",
              "status": "affected",
              "version": "7.15.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.15.0",
              "status": "affected",
              "version": "7.15.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.14.1",
              "status": "affected",
              "version": "7.14.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.14.0",
              "status": "affected",
              "version": "7.14.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.13.2",
              "status": "affected",
              "version": "7.13.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.13.1",
              "status": "affected",
              "version": "7.13.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.13.0",
              "status": "affected",
              "version": "7.13.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.12.3",
              "status": "affected",
              "version": "7.12.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.12.2",
              "status": "affected",
              "version": "7.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.12.1",
              "status": "affected",
              "version": "7.12.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.12.0",
              "status": "affected",
              "version": "7.12.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Muhamad Arga Reksapati"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Daniel Stenberg"
        }
      ],
      "descriptions": [
        {
          "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`."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-294 Authentication Bypass by Capture-replay",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-13T08:29:08.900Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-7168.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-7168.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3697719"
        }
      ],
      "title": "cross-proxy Digest auth state leak"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-7168",
      "date": "2026-05-27",
      "epss": "0.00079",
      "percentile": "0.23238"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-7168\",\"sourceIdentifier\":\"2499f714-1537-4658-8207-48ae4bb9eae9\",\"published\":\"2026-05-13T13:01:57.200\",\"lastModified\":\"2026-05-14T14:12:48.457\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"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`.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-294\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.12.0\",\"versionEndExcluding\":\"8.20.0\",\"matchCriteriaId\":\"29BC733F-6C8A-471C-BAAC-81727A2B0A19\"}]}]}],\"references\":[{\"url\":\"https://curl.se/docs/CVE-2026-7168.html\",\"source\":\"2499f714-1537-4658-8207-48ae4bb9eae9\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://curl.se/docs/CVE-2026-7168.json\",\"source\":\"2499f714-1537-4658-8207-48ae4bb9eae9\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://hackerone.com/reports/3697719\",\"source\":\"2499f714-1537-4658-8207-48ae4bb9eae9\",\"tags\":[\"Exploit\",\"Issue Tracking\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/04/29/14\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Patch\"]},{\"url\":\"https://hackerone.com/reports/3697719\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"Exploit\",\"Issue Tracking\"]}]}}"
  }
}

CERTFR-2026-AVI-0514

Vulnerability from certfr_avis - Published: 2026-04-29 - Updated: 2026-04-29

De multiples vulnérabilités ont été découvertes dans Curl. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données et un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

	Vendor	Product	Description
	Curl	cURL et libcurl	Curl versions postérieures ou égales à 7.10.6 et antérieures à 8.20.0

References

Title

Publication Time

FKIE_CVE-2026-7168

Vulnerability from fkie_nvd - Published: 2026-05-13 13:01 - Updated: 2026-05-14 14:12

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

References

URL	Tags
2499f714-1537-4658-8207-48ae4bb9eae9	https://curl.se/docs/CVE-2026-7168.html	Patch, Vendor Advisory
2499f714-1537-4658-8207-48ae4bb9eae9	https://curl.se/docs/CVE-2026-7168.json	Vendor Advisory
2499f714-1537-4658-8207-48ae4bb9eae9	https://hackerone.com/reports/3697719	Exploit, Issue Tracking
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/04/29/14	Mailing List, Patch
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://hackerone.com/reports/3697719	Exploit, Issue Tracking

Impacted products

	Vendor	Product	Version
	haxx	curl	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "29BC733F-6C8A-471C-BAAC-81727A2B0A19",
              "versionEndExcluding": "8.20.0",
              "versionStartIncluding": "7.12.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "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`."
    }
  ],
  "id": "CVE-2026-7168",
  "lastModified": "2026-05-14T14:12:48.457",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-05-13T13:01:57.200",
  "references": [
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://curl.se/docs/CVE-2026-7168.html"
    },
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://curl.se/docs/CVE-2026-7168.json"
    },
    {
      "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "url": "https://hackerone.com/reports/3697719"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Issue Tracking"
      ],
      "url": "https://hackerone.com/reports/3697719"
    }
  ],
  "sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-294"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-V92M-HRHJ-GW54

Vulnerability from github – Published: 2026-05-13 18:30 – Updated: 2026-05-13 18:30

Details

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.

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-7168"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-294"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-13T13:01:57Z",
    "severity": "MODERATE"
  },
  "details": "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`.",
  "id": "GHSA-v92m-hrhj-gw54",
  "modified": "2026-05-13T18:30:52Z",
  "published": "2026-05-13T18:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7168"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3697719"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-7168.html"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-7168.json"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

MSRC_CVE-2026-7168

Vulnerability from csaf_microsoft - Published: 2026-05-02 00:00 - Updated: 2026-05-26 14:38

Summary

cross-proxy Digest auth state leak

Notes

Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

CVE-2026-7168

Affected products

Fixed 1 product

Product	Identifier	Version	Remediation
Unresolved product id: 21207-17084		—

Known affected 1 product

Product	Identifier	Version	Remediation
Unresolved product id: 17084-4		—	Vendor Fix fix

Known not affected 5 products

Product	Identifier	Version	Remediation
Unresolved product id: 17084-5		—
Unresolved product id: 17084-1		—
Unresolved product id: 17084-3		—
Unresolved product id: 17084-2		—
Unresolved product id: 17084-6		—

References

4 references

URL	Category
https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self
https://support.microsoft.com/lifecycle	external
https://www.first.org/cvss	external
https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self

JSON

To clipboard

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-7168 cross-proxy Digest auth state leak - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-7168.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "cross-proxy Digest auth state leak",
    "tracking": {
      "current_release_date": "2026-05-26T14:38:37.000Z",
      "generator": {
        "date": "2026-05-27T07:15:09.716Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-7168",
      "initial_release_date": "2026-05-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-05-14T01:03:08.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        },
        {
          "date": "2026-05-19T01:47:06.000Z",
          "legacy_version": "2",
          "number": "2",
          "summary": "Information published."
        },
        {
          "date": "2026-05-26T14:38:37.000Z",
          "legacy_version": "3",
          "number": "3",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "3.0",
                "product": {
                  "name": "Azure Linux 3.0",
                  "product_id": "17084"
                }
              }
            ],
            "category": "product_name",
            "name": "Azure Linux"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003cazl3 curl 0:8.11.1-6.azl3",
                "product": {
                  "name": "\u003cazl3 curl 0:8.11.1-6.azl3",
                  "product_id": "4"
                }
              },
              {
                "category": "product_version",
                "name": "azl3 curl 0:8.11.1-6.azl3",
                "product": {
                  "name": "azl3 curl 0:8.11.1-6.azl3",
                  "product_id": "21207"
                }
              }
            ],
            "category": "product_name",
            "name": "curl"
          },
          {
            "category": "product_name",
            "name": "azl3 cmake 0:3.30.3-13.azl3",
            "product": {
              "name": "azl3 cmake 0:3.30.3-13.azl3",
              "product_id": "5"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 mysql 0:8.0.46-1.azl3",
            "product": {
              "name": "azl3 mysql 0:8.0.46-1.azl3",
              "product_id": "1"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 rust 0:1.75.0-28.azl3",
            "product": {
              "name": "azl3 rust 0:1.75.0-28.azl3",
              "product_id": "3"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 rust 0:1.90.0-7.azl3",
            "product": {
              "name": "azl3 rust 0:1.90.0-7.azl3",
              "product_id": "2"
            }
          },
          {
            "category": "product_name",
            "name": "azl3 tensorflow 0:2.16.1-11.azl3",
            "product": {
              "name": "azl3 tensorflow 0:2.16.1-11.azl3",
              "product_id": "6"
            }
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "\u003cazl3 curl 0:8.11.1-6.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-4"
        },
        "product_reference": "4",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 curl 0:8.11.1-6.azl3 as a component of Azure Linux 3.0",
          "product_id": "21207-17084"
        },
        "product_reference": "21207",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 cmake 0:3.30.3-13.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-5"
        },
        "product_reference": "5",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 mysql 0:8.0.46-1.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-1"
        },
        "product_reference": "1",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 rust 0:1.75.0-28.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-3"
        },
        "product_reference": "3",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 rust 0:1.90.0-7.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-2"
        },
        "product_reference": "2",
        "relates_to_product_reference": "17084"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "azl3 tensorflow 0:2.16.1-11.azl3 as a component of Azure Linux 3.0",
          "product_id": "17084-6"
        },
        "product_reference": "6",
        "relates_to_product_reference": "17084"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-7168",
      "flags": [
        {
          "label": "component_not_present",
          "product_ids": [
            "17084-5",
            "17084-1",
            "17084-3",
            "17084-2",
            "17084-6"
          ]
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "curl",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
        "fixed": [
          "21207-17084"
        ],
        "known_affected": [
          "17084-4"
        ],
        "known_not_affected": [
          "17084-5",
          "17084-1",
          "17084-3",
          "17084-2",
          "17084-6"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-7168 cross-proxy Digest auth state leak - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-7168.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-14T01:03:08.000Z",
          "details": "0:8.11.1-7.azl3:Security Update:https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade",
          "product_ids": [
            "17084-4"
          ],
          "url": "https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade"
        }
      ],
      "title": "cross-proxy Digest auth state leak"
    }
  ]
}

RHSA-2026:19106

Vulnerability from csaf_redhat - Published: 2026-05-19 13:46 - Updated: 2026-05-20 09:06

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Moderate

Notes

Topic: An update for Red Hat Hardened Images RPMs is now available.

Details: This update includes the following RPMs: curl: * curl-8.20.0-2.hum1 (aarch64, x86_64) * libcurl-8.20.0-2.hum1 (aarch64, x86_64) * libcurl-devel-8.20.0-2.hum1 (aarch64, x86_64) * libcurl-minimal-8.20.0-2.hum1 (aarch64, x86_64) * curl-8.20.0-2.hum1.src (src)

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-7168

A flaw was found in libcurl. When a user performs a transfer over an HTTP proxy using Digest authentication and then reuses the same handle for a second transfer with a different proxy host, libcurl incorrectly sends the `Proxy-Authorization` header intended for the first proxy to the second proxy. This could lead to the disclosure of sensitive authentication information to an unintended proxy, potentially allowing an attacker to gain unauthorized access or impersonate the user.

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE-201 - Insertion of Sensitive Information Into Sent Data

Affected products

Fixed 3 products

Product	Version	Remediation
Unresolved product id: Red Hat Hardened Images:curl-main@aarch64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:curl-main@src	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat Hardened Images:curl-main@x86_64	—	Vendor Fix fix Workaround

Threats

Impact Moderate

References

13 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:19106	self
https://images.redhat.com/	external
https://access.redhat.com/security/cve/CVE-2026-7168	external
https://access.redhat.com/security/updates/classi…	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-7168	self
https://bugzilla.redhat.com/show_bug.cgi?id=2476979	external
https://www.cve.org/CVERecord?id=CVE-2026-7168	external
https://nvd.nist.gov/vuln/detail/CVE-2026-7168	external
http://www.openwall.com/lists/oss-security/2026/0…	external
https://curl.se/docs/CVE-2026-7168.html	external
https://curl.se/docs/CVE-2026-7168.json	external
https://hackerone.com/reports/3697719	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for Red Hat Hardened Images RPMs is now available.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "This update includes the following RPMs:\n\ncurl:\n  * curl-8.20.0-2.hum1 (aarch64, x86_64)\n  * libcurl-8.20.0-2.hum1 (aarch64, x86_64)\n  * libcurl-devel-8.20.0-2.hum1 (aarch64, x86_64)\n  * libcurl-minimal-8.20.0-2.hum1 (aarch64, x86_64)\n  * curl-8.20.0-2.hum1.src (src)",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2026:19106",
        "url": "https://access.redhat.com/errata/RHSA-2026:19106"
      },
      {
        "category": "external",
        "summary": "https://images.redhat.com/",
        "url": "https://images.redhat.com/"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-7168",
        "url": "https://access.redhat.com/security/cve/CVE-2026-7168"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/",
        "url": "https://access.redhat.com/security/updates/classification/"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_19106.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update",
    "tracking": {
      "current_release_date": "2026-05-20T09:06:22+00:00",
      "generator": {
        "date": "2026-05-20T09:06:22+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.8.0"
        }
      },
      "id": "RHSA-2026:19106",
      "initial_release_date": "2026-05-19T13:46:13+00:00",
      "revision_history": [
        {
          "date": "2026-05-19T13:46:13+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-05-20T08:21:35+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-05-20T09:06:22+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Hardened Images",
                "product": {
                  "name": "Red Hat Hardened Images",
                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Hardened Images"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "curl-main@aarch64",
                "product": {
                  "name": "curl-main@aarch64",
                  "product_id": "curl-main@aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/curl@8.20.0-2.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "curl-main@src",
                "product": {
                  "name": "curl-main@src",
                  "product_id": "curl-main@src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/curl@8.20.0-2.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "curl-main@x86_64",
                "product": {
                  "name": "curl-main@x86_64",
                  "product_id": "curl-main@x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/curl@8.20.0-2.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "curl-main@aarch64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:curl-main@aarch64"
        },
        "product_reference": "curl-main@aarch64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "curl-main@src as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:curl-main@src"
        },
        "product_reference": "curl-main@src",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "curl-main@x86_64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:curl-main@x86_64"
        },
        "product_reference": "curl-main@x86_64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-7168",
      "cwe": {
        "id": "CWE-201",
        "name": "Insertion of Sensitive Information Into Sent Data"
      },
      "discovery_date": "2026-05-13T10:01:12.117148+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2476979"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in libcurl. When a user performs a transfer over an HTTP proxy using Digest authentication and then reuses the same handle for a second transfer with a different proxy host, libcurl incorrectly sends the `Proxy-Authorization` header intended for the first proxy to the second proxy. This could lead to the disclosure of sensitive authentication information to an unintended proxy, potentially allowing an attacker to gain unauthorized access or impersonate the user.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Moderate: A flaw in libcurl allows for information disclosure when a client reuses a handle for HTTP proxy transfers. If a libcurl application uses Digest authentication with one proxy and then connects to a different proxy using the same handle, the `Proxy-Authorization` header from the initial connection may be inadvertently sent to the second proxy, potentially exposing sensitive authentication data.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:curl-main@aarch64",
          "Red Hat Hardened Images:curl-main@src",
          "Red Hat Hardened Images:curl-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-7168"
        },
        {
          "category": "external",
          "summary": "RHBZ#2476979",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2476979"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-7168",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-7168"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-7168",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7168"
        },
        {
          "category": "external",
          "summary": "http://www.openwall.com/lists/oss-security/2026/04/29/14",
          "url": "http://www.openwall.com/lists/oss-security/2026/04/29/14"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2026-7168.html",
          "url": "https://curl.se/docs/CVE-2026-7168.html"
        },
        {
          "category": "external",
          "summary": "https://curl.se/docs/CVE-2026-7168.json",
          "url": "https://curl.se/docs/CVE-2026-7168.json"
        },
        {
          "category": "external",
          "summary": "https://hackerone.com/reports/3697719",
          "url": "https://hackerone.com/reports/3697719"
        }
      ],
      "release_date": "2026-05-13T08:29:08.900000+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-19T13:46:13+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:curl-main@aarch64",
            "Red Hat Hardened Images:curl-main@src",
            "Red Hat Hardened Images:curl-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:19106"
        },
        {
          "category": "workaround",
          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
          "product_ids": [
            "Red Hat Hardened Images:curl-main@aarch64",
            "Red Hat Hardened Images:curl-main@src",
            "Red Hat Hardened Images:curl-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "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"
          },
          "products": [
            "Red Hat Hardened Images:curl-main@aarch64",
            "Red Hat Hardened Images:curl-main@src",
            "Red Hat Hardened Images:curl-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse"
    }
  ]
}

WID-SEC-W-2026-1307

Vulnerability from csaf_certbund - Published: 2026-04-28 22:00 - Updated: 2026-05-04 22:00

Summary

cURL: Mehrere Schwachstellen

Severity

Hoch

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: cURL ist eine Client-Software, die das Austauschen von Dateien mittels mehrerer Protokolle wie z. B. HTTP oder FTP erlaubt.

Angriff: Ein Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Sicherheitsvorkehrungen zu umgehen, vertrauliche Informationen offenzulegen oder Daten zu manipulieren.

Betroffene Betriebssysteme: - Sonstiges - UNIX

CVE-2026-4873

Affected products

Known affected 4 products

Product	Identifier	Version
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source cURL <8.20.0 Open Source / cURL		<8.20.0

CVE-2026-5545

Affected products

Known affected 4 products

Product	Identifier	Version
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source cURL <8.20.0 Open Source / cURL		<8.20.0

CVE-2026-5773

Affected products

Known affected 4 products

Product	Identifier	Version
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source cURL <8.20.0 Open Source / cURL		<8.20.0

CVE-2026-6253

Affected products

Known affected 4 products

Product	Identifier	Version
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source cURL <8.20.0 Open Source / cURL		<8.20.0

CVE-2026-6276

Affected products

Known affected 4 products

Product	Identifier	Version
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source cURL <8.20.0 Open Source / cURL		<8.20.0

CVE-2026-6429

Affected products

Known affected 4 products

Product	Identifier	Version
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source cURL <8.20.0 Open Source / cURL		<8.20.0

CVE-2026-7009

Affected products

Known affected 4 products

Product	Identifier	Version
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source cURL <8.20.0 Open Source / cURL		<8.20.0

CVE-2026-7168

Affected products

Known affected 4 products

Product	Identifier	Version
SUSE Linux SUSE	`cpe:/o:suse:suse_linux:-`	—
Red Hat Enterprise Linux Red Hat	`cpe:/o:redhat:enterprise_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source cURL <8.20.0 Open Source / cURL		<8.20.0

References

13 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://curl.se/docs/CVE-2026-4873.html	external
https://curl.se/docs/CVE-2026-5545.html	external
https://curl.se/docs/CVE-2026-5773.html	external
https://curl.se/docs/CVE-2026-6276.html	external
https://curl.se/docs/CVE-2026-6253.html	external
https://curl.se/docs/CVE-2026-6429.html	external
https://curl.se/docs/CVE-2026-7009.html	external
https://curl.se/docs/CVE-2026-7168.html	external
https://access.redhat.com/errata/RHSA-2026:12916	external
https://lists.suse.com/pipermail/sle-security-upd…	external
https://ubuntu.com/security/notices/USN-8227-1	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "cURL ist eine Client-Software, die das Austauschen von Dateien mittels mehrerer Protokolle wie z. B. HTTP oder FTP erlaubt.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Sicherheitsvorkehrungen zu umgehen, vertrauliche Informationen offenzulegen oder Daten zu manipulieren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Sonstiges\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2026-1307 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1307.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2026-1307 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1307"
      },
      {
        "category": "external",
        "summary": "Curl Document vom 2026-04-28",
        "url": "https://curl.se/docs/CVE-2026-4873.html"
      },
      {
        "category": "external",
        "summary": "Curl Document vom 2026-04-28",
        "url": "https://curl.se/docs/CVE-2026-5545.html"
      },
      {
        "category": "external",
        "summary": "Curl Document vom 2026-04-28",
        "url": "https://curl.se/docs/CVE-2026-5773.html"
      },
      {
        "category": "external",
        "summary": "Curl Document vom 2026-04-28",
        "url": "https://curl.se/docs/CVE-2026-6276.html"
      },
      {
        "category": "external",
        "summary": "Curl Document vom 2026-04-28",
        "url": "https://curl.se/docs/CVE-2026-6253.html"
      },
      {
        "category": "external",
        "summary": "Curl Document vom 2026-04-28",
        "url": "https://curl.se/docs/CVE-2026-6429.html"
      },
      {
        "category": "external",
        "summary": "Curl Document vom 2026-04-28",
        "url": "https://curl.se/docs/CVE-2026-7009.html"
      },
      {
        "category": "external",
        "summary": "Curl Document vom 2026-04-28",
        "url": "https://curl.se/docs/CVE-2026-7168.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2026:12916 vom 2026-05-02",
        "url": "https://access.redhat.com/errata/RHSA-2026:12916"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2026:21452-1 vom 2026-05-04",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/025804.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-8227-1 vom 2026-05-04",
        "url": "https://ubuntu.com/security/notices/USN-8227-1"
      }
    ],
    "source_lang": "en-US",
    "title": "cURL: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-05-04T22:00:00.000+00:00",
      "generator": {
        "date": "2026-05-05T08:06:13.601+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.5.0"
        }
      },
      "id": "WID-SEC-W-2026-1307",
      "initial_release_date": "2026-04-28T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2026-04-28T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2026-05-03T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2026-05-04T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c8.20.0",
                "product": {
                  "name": "Open Source cURL \u003c8.20.0",
                  "product_id": "T053406"
                }
              },
              {
                "category": "product_version",
                "name": "8.20.0",
                "product": {
                  "name": "Open Source cURL 8.20.0",
                  "product_id": "T053406-fixed",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:curl:curl:8.20.0"
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "cURL"
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-4873",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T053406"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-4873"
    },
    {
      "cve": "CVE-2026-5545",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T053406"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-5545"
    },
    {
      "cve": "CVE-2026-5773",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T053406"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-5773"
    },
    {
      "cve": "CVE-2026-6253",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T053406"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-6253"
    },
    {
      "cve": "CVE-2026-6276",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T053406"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-6276"
    },
    {
      "cve": "CVE-2026-6429",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T053406"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-6429"
    },
    {
      "cve": "CVE-2026-7009",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T053406"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-7009"
    },
    {
      "cve": "CVE-2026-7168",
      "product_status": {
        "known_affected": [
          "T002207",
          "67646",
          "T000126",
          "T053406"
        ]
      },
      "release_date": "2026-04-28T22:00:00.000+00:00",
      "title": "CVE-2026-7168"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

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

CERTFR-2026-AVI-0514

Solutions

FKIE_CVE-2026-7168

GHSA-V92M-HRHJ-GW54

MSRC_CVE-2026-7168

RHSA-2026:19106

WID-SEC-W-2026-1307

Tags

Sightings

Nomenclature