Security Advisory

CVE-2026-54030

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-25 15:48:00

Last updated 2026-06-26 02:04:54

Assigner GitHub_M

CVSS score 8.0

State PUBLISHED

Description

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.

← Browse all CVEs View on cve.org ↗