GHSA-pjpj-v387-x4vq
TYPO3 CMS has Broken Access Control in its Form Framework
Quick fix
GHSA-pjpj-v387-x4vq — typo3/cms-core: upgrade to the fixed version with the command below.
composer require typo3/cms-core:^10.4.57Details
### Problem Backend users with access to the Form Framework were able to use files not ending in `.form.yaml` as form definitions, which were processed without denying the incorrect file extension. Maliciously crafted form definition files can be used to execute arbitrary SQL statements, allowing attackers to escalate privileges by creating administrative backend user accounts.
### 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 “Ethan” for reporting this issue, and TYPO3 core & security team member Oliver Hader for fixing it.
### Resources * [TYPO3-CORE-SA-2026-019](https://typo3.org/security/advisory/typo3-core-sa-2026-019)
Are you affected?
Enter the version of the package you're using.
Affected packages
0Fixed in: 10.4.57composer require typo3/cms-core:^10.4.5711.0.0Fixed in: 11.5.51composer require typo3/cms-core:^11.5.5112.0.0Fixed in: 12.4.46composer require typo3/cms-core:^12.4.4613.0.0Fixed in: 13.4.31composer require typo3/cms-core:^13.4.3114.0.0Fixed in: 14.3.3composer require typo3/cms-core:^14.3.30Fixed in: 10.4.57composer require typo3/cms-form:^10.4.5711.0.0Fixed in: 11.5.51composer require typo3/cms-form:^11.5.5112.0.0Fixed in: 12.4.46composer require typo3/cms-form:^12.4.4613.0.0Fixed in: 13.4.31composer require typo3/cms-form:^13.4.3114.0.0Fixed in: 14.3.3composer require typo3/cms-form:^14.3.3References
- https://github.com/TYPO3/typo3/security/advisories/GHSA-pjpj-v387-x4vq[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-11607[ADVISORY]
- https://github.com/TYPO3/typo3/commit/040d50d082a01f9e8bd113effd91290a9bb3b69e[WEB]
- https://github.com/TYPO3/typo3/commit/50974c658f647f1aece347b5d6d5acc3c87f2dca[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-11607.yaml[WEB]
- https://github.com/TYPO3/typo3[PACKAGE]
- https://typo3.org/security/advisory/typo3-core-sa-2026-019[WEB]