CVE-2026-92392 (GCVE-0-2026-92392)

Vulnerability from cvelistv5 – Published: 2026-10-14 07:46 – Updated: 2026-10-14 07:46
VLAI
Title
HTTP/2 upload Use-After-Free
Summary
During an upload, curl mishandles HTTP/2 `RST_STREAM` received from the server (with reason `HTTP_1_1_REQUIRED` or `REFUSED_STREAM`) leading to a use after free of a `struct Curl_easy` object.
Severity
No CVSS data available.
Assigner
curl CNA under the redhat root
CNA scorecard D 49/100 over 36 records in the last 180 days details
Impacted products
Vendor Product Version CPE status
curl curl Affected: 8.22.0 , ≤ 8.22.0 (semver)
Affected: 8.21.0 , ≤ 8.21.0 (semver)
Affected: 8.20.0 , ≤ 8.20.0 (semver)
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)
guessed Create a notification for this product.
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.22.0",
              "status": "affected",
              "version": "8.22.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.21.0",
              "status": "affected",
              "version": "8.21.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.20.0",
              "status": "affected",
              "version": "8.20.0",
              "versionType": "semver"
            },
            {
              "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"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Luna with Claude"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Anthropic"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Stefan Eissing"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "During an upload, curl mishandles HTTP/2 `RST_STREAM` received from the server\n(with reason `HTTP_1_1_REQUIRED` or `REFUSED_STREAM`) leading to a use after\nfree of a `struct Curl_easy` object."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-416 Use After Free",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-14T07:46:15.160Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-92392.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-92392.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/4030333"
        }
      ],
      "title": "HTTP/2 upload Use-After-Free"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-92392",
    "datePublished": "2026-10-14T07:46:15.160Z",
    "dateReserved": "2026-09-16T08:12:53.407Z",
    "dateUpdated": "2026-10-14T07:46:15.160Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-92392",
      "date": "2026-10-14",
      "epss": "0.00226",
      "percentile": "0.12403"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "curl",
                "vendor": "curl",
                "versions": [
                  {
                    "lessThanOrEqual": "8.22.0",
                    "status": "affected",
                    "version": "8.22.0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "8.21.0",
                    "status": "affected",
                    "version": "8.21.0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "8.20.0",
                    "status": "affected",
                    "version": "8.20.0",
                    "versionType": "semver"
                  },
                  {
                    "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"
                  }
                ]
              }
            ],
            "source": "2499f714-1537-4658-8207-48ae4bb9eae9"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "During an upload, curl mishandles HTTP/2 `RST_STREAM` received from the server\n(with reason `HTTP_1_1_REQUIRED` or `REFUSED_STREAM`) leading to a use after\nfree of a `struct Curl_easy` object."
          }
        ],
        "id": "CVE-2026-92392",
        "lastModified": "2026-10-14T08:17:05.997",
        "metrics": {},
        "published": "2026-10-14T08:17:05.997",
        "references": [
          {
            "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
            "url": "https://curl.se/docs/CVE-2026-92392.html"
          },
          {
            "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
            "url": "https://curl.se/docs/CVE-2026-92392.json"
          },
          {
            "source": "2499f714-1537-4658-8207-48ae4bb9eae9",
            "url": "https://hackerone.com/reports/4030333"
          }
        ],
        "sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-10-14T17:25:34+00:00",
      "cve": "CVE-2026-92392",
      "id": "CVE-2026-92392",
      "initial_release_date": "2026-10-14T12:00:00+00:00",
      "product_status:known_affected": "8",
      "product_status:known_not_affected": "120",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "curl: curl: HTTP/2 upload Use-After-Free",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92392.json",
      "version": "3"
    }
  }
}



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