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archive/Patch now/AIR-2026-1499
closedclosed 25 Oct 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-116173: vLLM denial of service via logprob token limits bypass

vLLM

A denial of service flaw in the vLLM Rust gRPC frontend allows attackers to terminate the engine core by bypassing token limits. The vulnerability impacts framework versions 0.22.0 to 0.24.0.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
8.2
EPSS
<0.01 · top 73% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
25 Oct 2026
last update
25 Oct 2026
CVE ids
CVE-2026-116173other records

Timeline · 1

  1. 25 Oct 2026CVE-2026-116173: vLLM from 0.22.0 before 0.24.0 contains a denial of service vulnerability that allows remote attackers to terminate EngineCore by…

Sources · 1

Advisories and databases

  1. 2026-10-25
    CVE-2026-116173: vLLM from 0.22.0 before 0.24.0 contains a denial of service vulnerability that allows remote attackers to terminate EngineCore by…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-116173

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
denial-of-servicevllm
dates
happened 25 Oct 2026 · first reported 25 Oct 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-25 16:18Z · updated 2026-10-25 16:18Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-116173: vLLM denial of service via logprob token limits bypass

https://gcdradar.vercel.app/incidents/cve-2026-116173-vllm-denial-of-service-via-logprob-token-lim · AIR-2026-1499 · closed 2026-10-25

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-10-25
- AI role: Attack on AI
- Products: vLLM
- CVE ids: CVE-2026-116173
- CVSS: 8.2

## Summary

A denial of service flaw in the vLLM Rust gRPC frontend allows attackers to terminate the engine core by bypassing token limits. The vulnerability impacts framework versions 0.22.0 to 0.24.0.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-10-25: CVE-2026-116173: vLLM from 0.22.0 before 0.24.0 contains a denial of service vulnerability that allows remote attackers to terminate EngineCore by… (https://nvd.nist.gov/vuln/detail/CVE-2026-116173)

## Sources

- 2026-10-25 NVD: CVE-2026-116173: vLLM from 0.22.0 before 0.24.0 contains a denial of service vulnerability that allows remote attackers to terminate EngineCore by… https://nvd.nist.gov/vuln/detail/CVE-2026-116173

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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