LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the POST /api/auth/2fa/backup/regenerate endpoint regenerates all 2FA backup codes without requiring any TOTP token or existing backup code verification. An attacker with a stolen session token can silently replace a victim's backup codes and use them to bypass 2FA login or disable 2FA entirely. This vulnerability is fixed in 0.8.4-rc1.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-h59w-x9h4-m6gv Exploit, Vendor Advisory
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-h59w-x9h4-m6gv Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · librechatNVD modified 2026-10-25 22:10
Affected (CPE criteria) 1
cpe:2.3:a:librechat:librechat:*:*:*:*:*:*:*:*
References 2
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-h59w-x9h4-m6gv Exploit, Vendor Advisory
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-h59w-x9h4-m6gv Exploit, Vendor Advisory