{
  "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-2026-14340",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-14340",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-01T21:03:00.726Z",
    "updatedAt": "2026-07-02T15:54:43.817Z",
    "importedAt": "2026-10-24T01:57:55.771Z",
    "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": "An incorrect authorization vulnerability in GitHub Enterprise Server allows issue creation in unrelated public repositories",
      "summary": "An incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed a user-to-server token scoped to a GitHub App installation to perform certain write operations on public repositories outside the token's intended scope. This was possible because the authorization check only verified that the installation had read permissions on the target repository rather than verifying that the token's installation was explicitly granted access to that repository. An attacker who obtained a victim's user-to-server token could create issues, issue comments, commit comments, and private vulnerability reports on any public repository, appearing as the victim user with no indication of the app involvement. This vulnerability was fixed by adding a repository scope check for user-to-server tokens issued by global apps. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.21.2, 3.20.4, 3.19.8, 3.18.11, 3.17.17, 3.16.20. This vulnerability was reported via the GitHub Bug Bounty program.",
      "affected": [
        {
          "vendor": "GitHub",
          "product": "Enterprise Server",
          "platforms": [
            "Linux"
          ],
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.16.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.16.19",
              "changes": [
                {
                  "at": "3.16.20",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.17.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.17.16",
              "changes": [
                {
                  "at": "3.17.17",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.18.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.18.10",
              "changes": [
                {
                  "at": "3.18.11",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.19.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.19.7",
              "changes": [
                {
                  "at": "3.19.8",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.20.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.20.3",
              "changes": [
                {
                  "at": "3.20.4",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.21.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.21.1",
              "changes": [
                {
                  "at": "3.21.2",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}