All intelligence
// vulnerability record
cached · NVD via COSMOS syncCVE-2026-54040
MEDIUMpublished 2026-06-25 17:16 UTC · 3 days ago · modified 2026-06-25 19:16 UTC
5.9
CVSS / 10
// description
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.
// cvss 3.1 vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
// weaknesses (CWE)
- CWE-306