LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the GET /api/auth/2fa/enable endpoint can be called by an authenticated user (or attacker with a stolen session) even when 2FA is already fully enabled on the account. This endpoint overwrites the existing TOTP secret, generates new backup codes, and sets twoFactorEnabled to false — all without requiring any TOTP or backup code verification. An attacker with a valid session token can completely take over a victim's 2FA, locking the legitimate user out of their own two-factor authentication. 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-45fp-6q26-wfgq Exploit, Vendor Advisory
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-45fp-6q26-wfgq 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 8.1 · 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-45fp-6q26-wfgq Exploit, Vendor Advisory
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-45fp-6q26-wfgq Exploit, Vendor Advisory