vLLM: Permissive default CORS origins allow cross-origin requests to the vLLM HTTP server

影響: pip:vllm < 0.32.0 → 0.32.0

The OpenAI-compatible server registers Starlette CORSMiddleware with allowed_origins defaulting to [""], and performs no authentication unless --api-key (or VLLM_API_KEY) is configured. A web page on any origin can send requests to a vLLM server that the victim's browser can reach (for example localhost or an internal/VPN address) and read the responses. The default allow_credentials=False blocks cookie-bearing cross-origin requests; because vLLM authenticates with a bearer header rather than c…

Read on GitHub Advisory Database

On 10/29/2026, 06:15 AM, GitHub Advisory Database published "vLLM: Permissive default CORS origins allow cross-origin requests to the vLLM HTTP server" (type: Advisory). Severity is "Low" (low). Related technologies: Python, OpenAI. CVE: CVE-2026-115917.