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.
Severity (CVSS)
| Base score | 5.3 |
|---|---|
| Severity | Medium |
| Version | CVSS 3.1 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N |
| Provided by | CNA |
Weaknesses
- CWE-306 — CWE-306: Missing Authentication for Critical Function
Affected products
| Vendor | Product | Versions |
|---|---|---|
| danny-avila | LibreChat | < 0.8.4-rc1 |
References
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-45fp-6q26-wfgq (x_refsource_CONFIRM)
Generated from the official CVE List on 26 Jun 2026 07:05 UTC.