PT-2026-52492 · Librechat · Librechat

·

CVE-2026-54027

·

Published

2026-06-25

·

Updated

2026-06-26

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Name of the Vulnerable Software and Affected Versions LibreChat versions prior to 0.8.4-rc1
Description An authenticated user can upload files into the tool resources (such as context or execute code) of any agent without the required ownership or EDIT permissions. This occurs because the 'POST /api/files/images' endpoint lacks the authorization checks implemented in the 'POST /api/files' route, allowing the authorization mechanism to be bypassed.
Recommendations Update to version 0.8.4-rc1.

Exploit

Fix

Missing Authorization

Found an issue in the description? Have something to add? Feel free to write us 👾

Weakness Enumeration

Related Identifiers

CVE-2026-54027
GHSA-C55R-P24W-HCJ5

Affected Products

Librechat