CVE-2026-54040: medium-severity vulnerability in danny-avila LibreChat
LibreChat: 2FA Backup Code Regeneration Without OTP Verification Allows 2FA Bypass
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.3%
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/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Affected products
danny-avila · LibreChatRelated CVEs — danny-avila LibreChat
In the same product, most dangerous first.
CVE-2025-69222CRITICALLibreChat is vulnerable to Server-Side Request Forgery due to missing restrictionsEPSS 4.6%CVE-2026-22252CRITICALLibreChat MCP Stdio Remote Command ExecutionEPSS 4.2%CVE-2026-32625CRITICALLibreChat Exfiltrates Server Secrets via MCP Server URL InjectionEPSS 2.8%CVE-2025-54868HIGHLibreChat exposes arbitrary chats through Meilisearch engineEPSS 0.5%CVE-2026-54037MEDIUMLibreChat: Incomplete Fix for CVE-2025-7105 — /api/convos/duplicate Lacks Rate Limiting Applied to /api/convos/forkEPSS 0.5%CVE-2026-54024MEDIUMLibreChat: Incomplete Fix for CVE-2024-11171 — Conversation Import Multer Instance Missing File Size LimitsEPSS 0.4%