CVE-2026-114051 — vLLM before 0.31.0 Denial of Service via min_tokens in /inference/v1/generate
vLLM before 0.31.0 skips the min_tokens <= max_tokens check for /inference/v1/generate requests with a null max_tokens, so the EngineCore input thread later dies on an uncaught …
Published: 2026-10-21 · CVSS: 7.1 · CVSS 4.0
vLLM before 0.31.0 skips the min_tokens <= max_tokens check for /inference/v1/generate requests with a null max_tokens, so the EngineCore input thread later dies on an uncaught VLLMValidationError while /health still returns 200. Unauthenticated remote attackers can send one request with an oversized min_tokens to hang all subsequent generation requests until manual restart.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7