CVE-2026-54036: 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…

PriorityP353high8.1CVSS 3.1

AVNACLPRLUINSUCNIHAH

EPSS

0.21%

11.5th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
danny-avila	librechat	< 0.8.4-rc1	0.8.4-rc1
librechat	librechat	<= 0.8.3	—

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