LiteLLM: Authentication Bypass via Host Header Injection
Title source: cnaExploitation Summary
EIP tracks 1 public exploit for CVE-2026-49468. PoCs published by BiiTts.
AI-analyzed exploit summary This repository contains a functional exploit for CVE-2026-49468, an authentication bypass vulnerability in LiteLLM proxy (<1.84.0) via Host-header route confusion. The exploit leverages a discrepancy between Starlette's URL reconstruction (using client-controlled Host header) and FastAPI's ASGI path dispatch to bypass authentication and authorization checks.
Description
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.84.0, This vulnerability is fixed in 1.84.0.
Exploits (1)
This repository contains a functional exploit for CVE-2026-49468, an authentication bypass vulnerability in LiteLLM proxy (<1.84.0) via Host-header route confusion. The exploit leverages a discrepancy between Starlette's URL reconstruction (using client-controlled Host header) and FastAPI's ASGI path dispatch to bypass authentication and authorization checks.
References (5)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H