Security Advisory

CVE-2026-54037

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-25 15:49:48

Last updated 2026-06-25 18:19:33

Assigner GitHub_M

CVSS score 6.5

State PUBLISHED

Description

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the fix for CVE-2025-7105 added forkIpLimiter and forkUserLimiter rate limiters to POST /api/convos/fork to prevent rapid-fire conversation duplication. However, the POST /api/convos/duplicate endpoint — which is in the same file and performs the exact same expensive database operations — was not given any rate limiter. An authenticated user can bypass the CVE-2025-7105 fix by using /duplicate instead of /fork to exhaust server resources. This vulnerability is fixed in 0.8.4-rc1.

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