CVE-2026-107851

Contao is an Open Source CMS. From version 5.7.0 until 5.7.12, TableAccessVoter::hasAccessToModule in core-bundle/src/Security/Voter/DataContainer/TableAccessVoter.php caches authorization decisions using only $tokenHash, a hash of the user's security token, and omits the table returned by...

Contao: Improper access control in the table access voter

Due to a caching defect in the security voter that governs table-level access to Contao's Data Container DCA backend, a low-privileged, non-admin backend user can obtain unauthorized read, create, update, and delete access to database tables outside their assigned module permissions. This include...

CVE-2026-107851

The Contao Open Source CMS (versions 5.7.0 through 5.7.12) contains an improper access control vulnerability in the TableAccessVoter::hasAccessToModule() function located in core-bundle/src/Security/Voter/DataContainer/TableAccessVoter.php. The root cause is that the voter caches authorization de...

CVE-2026-107851 Contao: Improper access control in the table access voter

Contao is an Open Source CMS. From version 5.7.0 until 5.7.12, TableAccessVoter::hasAccessToModule in core-bundle/src/Security/Voter/DataContainer/TableAccessVoter.php caches authorization decisions using only $tokenHash, a hash of the user's security token, and omits the table returned by...