CVE-2026-48746
CRITICAL
NVD
CVSS Score
9.1
Severity
CRITICAL
Published
Jun 22, 2026
Vendor
unknown
Description
vLLM is an inference and serving engine for large language models (LLMs). From 0.3.0 until 0.22.0, a vulnerability in ASGI web servers and starlette's trust on those web servers enables an authentication bypass of the OpenAI API AuthenticationMiddleware. It allows to use the API without providing the configured VLLM_API_KEY or --api-key. This vulnerability is fixed in 0.22.0.