CVE-2026-54036

Description

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.

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Produits concernés

• danny-avila LibreChat
• Librechat librechat

Scores CVSS

Faiblesses (CWE)

• CWE-306

Références

• https://github.com/danny-avila/LibreChat/security/advisories/GHSA-45fp-6q26-wfgq ExploitVendor Advisory
• https://github.com/danny-avila/LibreChat/security/advisories/GHSA-45fp-6q26-wfgq ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories