high7.7
CVE-2026-54033
LibreChat is an enhanced ChatGPT clone that supports multiple AI providers.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Librechat | Librechat | through 0.8.3 |