CVE-2026-15783 Missing Authorization vulnerability was identified in GitHub Enterprise Server that allowed reading private repository metadata via delegated bypass rule suites

[
  {
    "vendor": "GitHub",
    "product": "Enterprise Server",
    "versions": [
      {
        "status": "affected",
        "version": "3.17.0",
        "lessThanOrEqual": "3.17.17",
        "changes": [
          {
            "at": "3.17.18",
            "status": "unaffected"
          }
        ],
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.18.0",
        "lessThanOrEqual": "3.18.11",
        "changes": [
          {
            "at": "3.18.12",
            "status": "unaffected"
          }
        ],
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.19.0",
        "lessThanOrEqual": "3.19.8",
        "changes": [
          {
            "at": "3.19.9",
            "status": "unaffected"
          }
        ],
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.20.0",
        "lessThanOrEqual": "3.20.4",
        "changes": [
          {
            "at": "3.20.5",
            "status": "unaffected"
          }
        ],
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.21.0",
        "lessThanOrEqual": "3.21.2",
        "changes": [
          {
            "at": "3.21.3",
            "status": "unaffected"
          }
        ],
        "versionType": "semver"
      }
    ],
    "defaultStatus": "affected"
  }
]