[CVE-2026-54030] LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.5, LibreCha…

Descripción técnica

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.5, LibreChat's MCP OAuth implementation does not validate that the resource parameter from OAuth Protected Resource metadata (RFC 9728) matches the configured MCP server URL, allowing a malicious MCP server to steal access tokens intended for a legitimate server. This vulnerability is fixed in 0.8.5.

Puntuación CVSS

Score: 8/10 — Severidad: HIGH — Estado NIST: Analyzed

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Productos afectados

Librechat — Librechat

Debilidades (CWE)

CWE-346

Fuente oficial

Publicado en NIST NVD.