PT-2026-53473

Impact A Host-header parsing flaw in the LiteLLM proxy could, under specific conditions, allow unauthenticated access to protected management routes. The auth layer derived the effective route from request.url.path in litellm/proxy/auth/auth utils.py::get request route, which Starlette reconstruc...

User Impersonation

Overview litellm is a Library to easily interface with LLM API providers Affected versions of this package are vulnerable to User Impersonation via manipulation of the Host header during HTTP requests. An attacker can gain unauthorized access to protected management routes by crafting a malicious...