1. Home
  2. Vulnerabilities
  3. CVE-2026-48746
0.0
NA
CVE-2026-48746
vLLM: OpenAI auth bypass
Overview
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.

Details
INFO

Published Date :

June 22, 2026, 9:57 p.m.

Last Modified :

June 22, 2026, 9:57 p.m.

Remotely Exploit :

No

Source :

GitHub_M
Impact
Affected Products

The following products are affected by CVE-2026-48746 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Vllm-project vllm
: Total Affected Vendor : 1 | Products : 1
Solution
Update vLLM to version 0.22.0 or later to fix the authentication bypass vulnerability.
  • Update vLLM to version 0.22.0 or later.
  • Verify the API key authentication is enforced.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-48746 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.