CVE-2026-114051
CVE-2026-114051 · vLLM before 0.31.0 Denial of Service via min_tokens in /inference/v1/generate
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 7.1 · High · EPSS 0.4% · Fix available
- Published
- Updated
Affected products and versions
vllm
- Versions
- ≥ 0, < 0.31.0: Affected (semver)
- 0.31.0: Not affected (semver)
Update to 0.31.0