{
  "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-2026-8606",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-8606",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-05-26T23:59:41.742Z",
    "updatedAt": "2026-05-27T13:50:10.475Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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 in GitHub Enterprise Server via Advisory Package URL Endpoint",
      "summary": "A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed an attacker to cause the server to issue HTTP requests to internal services via the security advisories package lookup feature. By directing requests to an internal management service and measuring response timing, an attacker could infer the values of sensitive environment variables, including signing secrets and private keys. Exploitation required GitHub Packages to be enabled; on instances not running in private mode the vulnerability was exploitable without authentication, otherwise any authenticated user could exploit it. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21.1 and was fixed in versions 3.20.3, 3.19.7, 3.18.10, 3.17.16, and 3.16.19. This vulnerability was reported via the GitHub Bug Bounty program.",
      "affected": [
        {
          "vendor": "GitHub",
          "product": "Enterprise Server",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3.21.0",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "3.21.1",
              "changes": [
                {
                  "at": "3.21.1",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.20.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.20.2",
              "changes": [
                {
                  "at": "3.20.3",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.19.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.19.6",
              "changes": [
                {
                  "at": "3.19.7",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.18.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.18.9",
              "changes": [
                {
                  "at": "3.18.10",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.17.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.17.15",
              "changes": [
                {
                  "at": "3.17.16",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.16.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.16.18",
              "changes": [
                {
                  "at": "3.16.19",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}