CVE-2026-54033

Description

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, LibreChat allows users to configure custom OpenAI-compatible API endpoints by setting a baseURL. This URL is used to construct HTTP requests without any SSRF validation — no private IP check, no scheme restriction, no DNS pinning. An authenticated user can set baseURL to internal network addresses. This vulnerability is fixed in 0.8.4-rc1.

CVSS Vector

References

• https://github.com/danny-avila/LibreChat/security/advisories/GHSA-gc9r-88c3-7qhq
• https://github.com/danny-avila/LibreChat/security/advisories/GHSA-gc9r-88c3-7qhq