{
  "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-2026-3854",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-3854",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-03-10T17:37:34.890Z",
    "updatedAt": "2026-04-29T03:55:48.782Z",
    "importedAt": "2026-10-24T01:58:08.712Z",
    "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": "Remote code execution via git push option injection in GitHub Enterprise Server",
      "summary": "An improper neutralization of special elements vulnerability was identified in GitHub Enterprise Server that allowed an attacker with push access to a repository to achieve remote code execution on the instance. During a git push operation, user-supplied push option values were not properly sanitized before being included in internal service headers. Because the internal header format used a delimiter character that could also appear in user input, an attacker could inject additional metadata fields through crafted push option values. This vulnerability was reported via the GitHub Bug Bounty program and has been fixed in GitHub Enterprise Server versions 3.14.25, 3.15.20, 3.16.16, 3.17.13, 3.18.7 and 3.19.4.",
      "affected": [
        {
          "vendor": "GitHub",
          "product": "Enterprise Server",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.14.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.14.24",
              "changes": [
                {
                  "at": "3.14.25",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.15.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.15.19",
              "changes": [
                {
                  "at": "3.15.20",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.16.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.16.15",
              "changes": [
                {
                  "at": "3.16.16",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.17.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.17.12",
              "changes": [
                {
                  "at": "3.17.13",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.18.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.18.6",
              "changes": [
                {
                  "at": "3.18.7",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "3.19.0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "3.19.3",
              "changes": [
                {
                  "at": "3.19.4",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  }
}