{"cve":"CVE-2026-48746","nvd":{"published":"2026-06-22T23:16:30.490","modified":"2026-10-25T23:10:00.167","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":9.1},"cwes":["CWE-444","CWE-501"],"references":["https://github.com/vllm-project/vllm/pull/43426","https://github.com/vllm-project/vllm/security/advisories/GHSA-94f4-hr76-p5j6","https://x41-dsec.de/lab/advisories/x41-2026-002-starlette","https://access.redhat.com/errata/RHSA-2026:30088","https://access.redhat.com/errata/RHSA-2026:30089"],"products":["vllm:vllm"],"source":"nvd","synced_at":"2026-10-25T23:44:33.281319194+00:00"},"epss":{"cve":"CVE-2026-48746","score":0.01152,"percentile":0.66727,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-94f4-hr76-p5j6","url":"https://osv.dev/vulnerability/GHSA-94f4-hr76-p5j6","summary":"vLLM: OpenAI auth bypass","modified":"2026-09-10T03:50:49.016998148Z","packages":[{"ecosystem":"PyPI","name":"vllm","purl":"pkg:pypi/vllm","ranges":[">=0.3.0 <0.22.0"],"fixed":["0.22.0"]}]},{"id":"PYSEC-2026-226","url":"https://osv.dev/vulnerability/PYSEC-2026-226","summary":"","modified":"2026-06-26T00:00:06.010479511Z","packages":[{"ecosystem":"PyPI","name":"vllm","purl":"pkg:pypi/vllm","ranges":[">=0.3.0 <0.22.0"],"fixed":["0.22.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}