Low severityNVD Advisory· Published Jun 9, 2026· Updated Jun 9, 2026
CVE-2026-49738
CVE-2026-49738
Description
The path allowance check in GeneralUtility::isAllowedAbsPath() performed a plain string prefix comparison without requiring a directory separator boundary, causing a path like /var/www/html-other/secret.yaml to be incorrectly accepted as valid when the project root was /var/www/html. Administrator users with access to the File Abstraction Layer were able to create new file storage definitions pointing to directories outside the project root, bypassing this path check. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0-11.5.51, 12.0.0-12.4.46, 13.0.0-13.4.31 and 14.0.0-14.3.3.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
typo3/cms-corePackagist | < 10.4.57 | 10.4.57 |
typo3/cms-corePackagist | >= 11.0.0, < 11.5.51 | 11.5.51 |
typo3/cms-corePackagist | >= 12.0.0, < 12.4.46 | 12.4.46 |
typo3/cms-corePackagist | >= 13.0.0, < 13.4.31 | 13.4.31 |
typo3/cms-corePackagist | >= 14.0.0, < 14.3.3 | 14.3.3 |
Affected products
2Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-jf56-v8jc-jcc5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-49738ghsaADVISORY
- github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-49738.yamlghsaWEB
- github.com/TYPO3/typo3/commit/150a983a5d687cedcfc33bbe9c335d9a13fd05e5nvdWEB
- github.com/TYPO3/typo3/commit/44c2fa9807944136218a0842e3051c0a379a002dnvdWEB
- github.com/TYPO3/typo3/security/advisories/GHSA-jf56-v8jc-jcc5ghsaWEB
- typo3.org/security/advisory/typo3-core-sa-2026-016nvdWEB
News mentions
1- TYPO3 CMS: Thirteen Backend Vulnerabilities Disclosed on June 9, 2026Vypr Intelligence · Jun 9, 2026