HighGHSA-chm7-4vch-h8vrCVE-2026-49742

TYPO3 CMS has Broken Access Control in its Media Module

Published 12 Jun 2026 · Updated 10 Sept 2026

Affected packages

typo3/cms-coreComposer

Affected: >=11.0.0 <11.5.51
Fixed in: 11.5.51

Update to the fixed version for your release line, for example:composer require typo3/cms-core:^11.5.51

typo3/cms-coreComposer

Affected: >=12.0.0 <12.4.46
Fixed in: 12.4.46

Update to the fixed version for your release line, for example:composer require typo3/cms-core:^12.4.46

typo3/cms-coreComposer

Affected: >=13.0.0 <13.4.31
Fixed in: 13.4.31

Update to the fixed version for your release line, for example:composer require typo3/cms-core:^13.4.31

typo3/cms-coreComposer

Affected: >=14.0.0 <14.3.3
Fixed in: 14.3.3

Update to the fixed version for your release line, for example:composer require typo3/cms-core:^14.3.3

typo3/cms-filelistComposer

Affected: >=11.0.0 <11.5.51
Fixed in: 11.5.51

Update to the fixed version for your release line, for example:composer require typo3/cms-filelist:^11.5.51

typo3/cms-filelistComposer

Affected: >=12.0.0 <12.4.46
Fixed in: 12.4.46

Update to the fixed version for your release line, for example:composer require typo3/cms-filelist:^12.4.46

typo3/cms-filelistComposer

Affected: >=13.0.0 <13.4.31
Fixed in: 13.4.31

Update to the fixed version for your release line, for example:composer require typo3/cms-filelist:^13.4.31

typo3/cms-filelistComposer

Affected: >=14.0.0 <14.3.3
Fixed in: 14.3.3

Update to the fixed version for your release line, for example:composer require typo3/cms-filelist:^14.3.3

Details

Problem

Backend users with file download permissions were able to download files from the fallback storage of the file abstraction layer (FAL) via the Media Module. Since the fallback storage resolves paths relative to the server's document root, this could expose sensitive files such as log files.

Solution

Update to TYPO3 versions 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 Hyunseo Shin for reporting this issue, and to TYPO3 security team member Torben Hansen for fixing it.

Resources

TYPO3-CORE-SA-2026-013

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.