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OpenAdvisories
Medium · 6.9 CVE-2026-33159 EUVD-2026-14938GHSA-6mrr-q3pj-h53w

Craft CMS: Unauthenticated users could execute project configuration sync operations that should be restricted trusted users

Published Mar 24, 2026 · Updated Mar 24, 2026 · Assigned by GitHub_M

Description

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.

Affected products

VendorProductAffectedFixed
craftcms cms >= 4.0.0-RC1, < 4.17.8, >= 5.0.0-RC1, < 5.9.14 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist craftcms/cms >= 5.0.0-RC1, < 5.9.14 5.9.14 GHSA-6mrr-q3pj-h53w
Packagist craftcms/cms >= 4.0.0-RC1, < 4.17.8 4.17.8 GHSA-6mrr-q3pj-h53w

References