{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-76851",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-76851",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-01T21:55:10.149Z",
    "updatedAt": "2026-09-02T13:09:26.107Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Server-Side Request Forgery vulnerability in GitHub Enterprise Server allowed remote code execution via network access from pre-receive hooks to internal services",
      "summary": "A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed remote code execution on the instance. Insufficient network isolation allowed malicious pre-receive hook code to impersonate an internal service and redirect trusted internal requests to a privileged service, leading to elevated code execution. Exploitation required pre-receive hook networking to be enabled and either site administrator privileges or write access to a repository containing a configured pre-receive hook. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.20, 3.18.14, 3.19.11, 3.20.7, and 3.21.5. This vulnerability was reported via the GitHub Bug Bounty program.",
      "affected": [
        {
          "vendor": "GitHub",
          "product": "Enterprise Server",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.17.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.17.19",
              "changes": [
                {
                  "at": "3.17.20",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.18.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.18.13",
              "changes": [
                {
                  "at": "3.18.14",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.19.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.19.10",
              "changes": [
                {
                  "at": "3.19.11",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.20.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.20.6",
              "changes": [
                {
                  "at": "3.20.7",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.21.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.21.4",
              "changes": [
                {
                  "at": "3.21.5",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.22.0",
              "status": "unaffected",
              "versionType": "semver"
            }
          ]
        }
      ]
    }
  }
}