{"id":"CVE-2026-33159","summary":"Craft CMS: Unauthenticated users could execute project configuration sync operations that should be restricted trusted users","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.","aliases":["GHSA-6mrr-q3pj-h53w"],"modified":"2026-04-10T05:42:38.925315Z","published":"2026-03-24T17:28:37.422Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33159.json","cwe_ids":["CWE-306","CWE-862"],"cna_assigner":"GitHub_M"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/craftcms/cms","events":[{"introduced":"daac7c1da2f701f2e9ddee1da1457ce61660b581"},{"fixed":"3262cfa628ade304f0e565f9e45b52fab0f32df3"}],"database_specific":{"versions":[{"introduced":"4.0.0-RC1"},{"fixed":"4.17.8"}]}},{"type":"GIT","repo":"https://github.com/craftcms/cms","events":[{"introduced":"04755d93f86d07cc183db47db8a0eee106892e30"},{"fixed":"13c50dd550fabe74fe5317aeca090d286f1c7556"}],"database_specific":{"versions":[{"introduced":"5.0.0-RC1"},{"fixed":"5.9.14"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33159.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","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"}]}