{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "4.0.0-RC1"
              },
              {
                "fixed": "4.17.8"
              }
            ]
          },
          "events": [
            {
              "introduced": "daac7c1da2f701f2e9ddee1da1457ce61660b581"
            },
            {
              "fixed": "3262cfa628ade304f0e565f9e45b52fab0f32df3"
            }
          ],
          "repo": "https://github.com/craftcms/cms",
          "type": "GIT"
        },
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "5.0.0-RC1"
              },
              {
                "fixed": "5.9.14"
              }
            ]
          },
          "events": [
            {
              "introduced": "04755d93f86d07cc183db47db8a0eee106892e30"
            },
            {
              "fixed": "13c50dd550fabe74fe5317aeca090d286f1c7556"
            }
          ],
          "repo": "https://github.com/craftcms/cms",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6mrr-q3pj-h53w"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-306",
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33159.json"
  },
  "details": "Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14.",
  "id": "CVE-2026-33159",
  "modified": "2026-04-01T23:10:08.896612042Z",
  "published": "2026-03-24T17:28:37.422Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33159.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592"
    },
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/releases/tag/4.17.8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/craftcms/cms/releases/tag/5.9.14"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33159"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Craft CMS: Unauthenticated users could execute project configuration sync operations that should be restricted trusted users"
}