CVE-2026-47352: TYPO3 CMS has Broken Access Control in Backend API
Problem
Authenticated backend users were able to retrieve file metadata via several Backend API routes without proper permission checks, allowing access to files outside their permitted file mounts or storages.
Solution
Update to TYPO3 versions 10.4.57 ELTS, 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described.
Credits
TYPO3 CMS thanks Phong Lan for reporting this issue, and to TYPO3 core & security team member Oliver Hader for fixing it.
Resources
References
- github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-47352.yaml
- github.com/TYPO3/typo3/commit/17a3b7830d5931725db5fdab0cfc76d479884c96
- github.com/TYPO3/typo3/commit/bfe7c354168f467726020ed49299dd209a455719
- github.com/TYPO3/typo3/security/advisories/GHSA-2j54-93q2-3hjq
- github.com/advisories/GHSA-2j54-93q2-3hjq
- nvd.nist.gov/vuln/detail/CVE-2026-47352
- typo3.org/security/advisory/typo3-core-sa-2026-015
Code Behaviors & Features
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