PT-2026-52470 · Danny Avila · Librechat
Published
2026-06-25
·
Updated
2026-06-25
·
CVE-2026-54036
CVSS v3.1
5.3
Medium
| Vector | AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N |
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
Missing Authentication
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Weakness Enumeration
Related Identifiers
Affected Products
Librechat