---
title: "CVE-2026-114051: vLLM - Denial of Service"
description: "vLLM < 0.31.0 contains a denial of service caused by skipping min_tokens <= max_tokens check with null max_tokens in /inference/v1/generate requests, letting unauthenticated remote attackers hang generation requests, exploit requires sending crafted request with oversized min_tokens."
url: https://panop.io/threat-heartbeat/CVE-2026-114051/
---

# CVE-2026-114051 vLLM - Denial of Service

vLLM < 0.31.0 contains a denial of service caused by skipping min\_tokens <= max\_tokens check with null max\_tokens in /inference/v1/generate requests, letting unauthenticated remote attackers hang generation requests, exploit requires sending crafted request with oversized min\_tokens.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-114051)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

21 October 2026

Updated

21 October 2026

Weakness

[CWE-248](https://cwe.mitre.org/data/definitions/248.html)

## Vendor fix

Update to version 0.31.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-114051](https://nvd.nist.gov/vuln/detail/CVE-2026-114051)
- [https://github.com/vllm-project/vllm/security/advisories/GHSA-4xqp-c3mv-qff7](https://github.com/vllm-project/vllm/security/advisories/GHSA-4xqp-c3mv-qff7)
- [https://www.vulncheck.com/advisories/vllm-before-0.31.0-denial-of-service-via-min-tokens-in-inference-v1-generate](https://www.vulncheck.com/advisories/vllm-before-0.31.0-denial-of-service-via-min-tokens-in-inference-v1-generate)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)