TYPO3 CMS has Broken Access Control in Backend API
- When
- Where
- Global (internet)
- Category
- cyber_advisory · composer
### 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 * [TYPO3-CORE-SA-2026-015](https://typo3.org/security/advisory/typo3-core-sa-2026-015)
Involved actors & entities
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Sources
- GitHub Advisory Database ↗ · first seen 2026-06-12 19:08 UTC
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