Description
danny-avila/librechat is affected by an authorization bypass vulnerability due to improper access control checks. The `checkAccess` function in `api/server/middleware/roles/access.js` uses `permissions.some()` to validate permissions, which incorrectly grants access if only one of multiple required permissions is present. This allows users with the 'USER' role to create agents despite having `CREATE: false` permission, as the check for `['USE', 'CREATE']` passes with just `USE: true`. This vulnerability affects other permission checks as well, such as `PROMPTS`. The issue is present in all versions prior to the fix.
References (2)
Core 2
Core References
Patch, Third Party Advisory
https://huntr.com/bounties/7de2765b-d1fe-4495-9144-220070857c48
Scores
CVSS v3
5.3
EPSS
0.0003
EPSS Percentile
9.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-284
CWE-639
Status
published
Products (1)
librechat/librechat
< 0.7.9
Published
Sep 23, 2025
Tracked Since
Feb 18, 2026