{"id":"CVE-2026-48746","title":"vLLM is an inference and serving engine for large language models (LLMs)","summary":"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 Authenti…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-444","CWE-501"],"vendor":"vllm","product":"vllm","affected":["vllm >= 0.3.0, < 0.22.0"],"patched":["vllm 0.22.0"],"published":"2026-06-22","updated":"2026-09-16","sourceUpdated":"2026-09-16T13:18:00.653","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-48746","references":[{"url":"https://github.com/vllm-project/vllm/pull/43426","label":"security-advisories@github.com"},{"url":"https://github.com/vllm-project/vllm/security/advisories/GHSA-94f4-hr76-p5j6","label":"security-advisories@github.com"},{"url":"https://x41-dsec.de/lab/advisories/x41-2026-002-starlette","label":"security-advisories@github.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:30088","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:30089","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:36005","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:36006","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:42132","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:42142","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:42644","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:43038","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:61627","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:61629","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-48746","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2491581","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48746.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://x41-dsec.de/lab/advisories/x41-2026-002-starlette","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48746"},{"url":"https://github.com/vllm-project/vllm"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/vllm/PYSEC-2026-226.yaml"},{"url":"https://github.com/advisories/GHSA-94f4-hr76-p5j6"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-48746"},{"url":"https://access.redhat.com/errata/RHSA-2026:69466"},{"url":"https://access.redhat.com/errata/RHSA-2026:69467"},{"url":"https://access.redhat.com/errata/RHSA-2026:69469"},{"url":"https://access.redhat.com/errata/RHSA-2026:69464"}],"tags":["nvd","cve.org","exploit-available","osv","pip","ghsa","csaf","vex","red-hat"],"epss":0.01152,"epssPercentile":0.65082,"aliases":["GHSA-94f4-hr76-p5j6","PYSEC-2026-226"],"ecosystem":"pip","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-06-23T14:01:22.798843Z"},"ingestedAt":"2026-06-29T14:31:47.730Z","slug":"CVE-2026-48746","body":"## Overview\n\nvLLM 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.\n\n## Affected\n\n- `vllm >= 0.3.0, < 0.22.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `vllm 0.22.0`\n\n## Package advisory (CVE-2026-48746)\n\nAffected packages:\n\n- `vllm >= 0.3.0, < 0.22.0`\n\nPatched in:\n\n- `vllm 0.22.0`\n\nSource: https://osv.dev/vulnerability/GHSA-94f4-hr76-p5j6\n\n## Vendor advisories\n\n- **RHSA-2026:61627** · Red Hat · fixed in: Red Hat AI Inference Server 3.2 · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61627)\n- **RHSA-2026:36005** · Red Hat · fixed in: Red Hat AI Inference Server 3.2 · released 2026-07-06 · [advisory](https://access.redhat.com/errata/RHSA-2026:36005)\n- **RHSA-2026:61629** · Red Hat · fixed in: Red Hat AI Inference Server 3.2 · released 2026-08-31 · [advisory](https://access.redhat.com/errata/RHSA-2026:61629)\n- **RHSA-2026:36006** · Red Hat · fixed in: Red Hat AI Inference Server 3.2 · released 2026-07-06 · [advisory](https://access.redhat.com/errata/RHSA-2026:36006)\n- **RHSA-2026:30089** · Red Hat · fixed in: Red Hat AI Inference Server 3.3 · released 2026-06-25 · [advisory](https://access.redhat.com/errata/RHSA-2026:30089)\n- **RHSA-2026:30088** · Red Hat · fixed in: Red Hat AI Inference Server 3.3 · released 2026-06-25 · [advisory](https://access.redhat.com/errata/RHSA-2026:30088)\n- **RHSA-2026:42132** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.6 · released 2026-07-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:42132)\n- **RHSA-2026:42142** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.7 · released 2026-07-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:42142)\n- **RHSA-2026:43038** · Red Hat · fixed in: Red Hat Migration Toolkit for Applications 8.2 · released 2026-07-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:43038)\n- **RHSA-2026:42644** · Red Hat · fixed in: Red Hat OpenShift AI 2.25 · released 2026-07-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:42644)\n- **Red Hat VEX** · Important · affected: Exploit Intelligence, OpenShift Lightspeed, Red Hat AI Inference Server, Red Hat Ansible Automation Platform 2, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat OpenShift AI (RHOAI) · no fix planned: Red Hat AI Inference Server, Red Hat Ansible Automation Platform 2, Red Hat OpenShift AI (RHOAI), Exploit Intelligence, … · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48746.json)\n- **RHSA-2026:69466** · Red Hat · fixed in: Red Hat AI Inference Server 3.4 · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69466)\n- **RHSA-2026:69467** · Red Hat · fixed in: Red Hat AI Inference Server 3.4 · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69467)\n- **RHSA-2026:69469** · Red Hat · fixed in: Red Hat AI Inference Server 3.4 · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69469)\n- **RHSA-2026:69464** · Red Hat · fixed in: Red Hat AI Inference Server 3.4 · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69464)","depth":"abyssal","depthScore":62,"depthScoreParts":{"impact":50.1,"likelihood":0.2,"exploitation":12,"ransomware":0},"changes":[{"seq":204864,"id":"CVE-2026-48746","ts":1789563356896,"field":"exploit_available","old":"false","new":"true"}]}