Detections
Analytics
CVE-2026-48746
critical
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.
References
https://x41-dsec.de/lab/advisories/x41-2026-002-starlette
https://github.com/vllm-project/vllm/security/advisories/GHSA-94f4-hr76-p5j6
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48746.json
https://github.com/vllm-project/vllm/pull/43426
https://bugzilla.redhat.com/show_bug.cgi?id=2491581
https://access.redhat.com/security/cve/CVE-2026-48746
https://access.redhat.com/errata/RHSA-2026:36006
https://access.redhat.com/errata/RHSA-2026:36005