gcdRadar
archive/Patch now/AIR-2026-0157
closedclosed 21 Sep 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-94622: vLLM Denial of Service in NIXL Connector Metadata Handling

vLLM

A denial of service vulnerability in vLLM allows attackers to crash the decode engine via incomplete metadata parameters. The flaw causes uncaught exceptions in EngineCore scheduling and failure of routed requests.

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
8.7
EPSS
0.01 · top 50% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
21 Sep 2026
last update
21 Sep 2026
CVE ids
CVE-2026-94622other records

Timeline · 1

  1. 21 Sep 2026CVE-2026-94622: vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector's metadata handling for…

Sources · 1

Advisories and databases

  1. 2026-09-21
    CVE-2026-94622: vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector's metadata handling for…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-94622

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 21 Sep 2026 · first reported 21 Sep 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 2026-10-18 06:33Z · updated 2026-10-18 06:33Z

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-2026-94622: vLLM Denial of Service in NIXL Connector Metadata Handling

https://gcdradar.vercel.app/incidents/cve-2026-94622-vllm-denial-of-service-in-nixl-connector-meta · AIR-2026-0157 · closed 2026-09-21

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-09-21
- AI role: Attack on AI
- Products: vLLM
- CVE ids: CVE-2026-94622
- CVSS: 8.7

## Summary

A denial of service vulnerability in vLLM allows attackers to crash the decode engine via incomplete metadata parameters. The flaw causes uncaught exceptions in EngineCore scheduling and failure of routed requests.

## What to do

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

## Latest updates

- 2026-09-21: CVE-2026-94622: vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector's metadata handling for… (https://nvd.nist.gov/vuln/detail/CVE-2026-94622)

## Sources

- 2026-09-21 NVD: CVE-2026-94622: vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector's metadata handling for… https://nvd.nist.gov/vuln/detail/CVE-2026-94622

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

Related

  1. closed
    vLLM vLLM Denial of Service through Multimodal UUID Cache Desynchronization

    Patch now · Disclosed · since 21 Oct 2026

    AI
  2. closed
    vLLM vLLM Denial of Service via Unvalidated mm_processor_kwargs

    Patch now · Disclosed · since 21 Oct 2026

    AI
  3. closed6.5
    vLLM CVE-2026-114050: vLLM multimodal UUID cache identity flaw leads to engine crash

    Patch now · Disclosed · since 21 Oct 2026 · updated 23 Oct 2026 · CVE-2026-114050

    AI
  4. closed7.1
    vLLM CVE-2026-114054: vLLM cache aliasing vulnerability exposes processed media and KV state

    Patch now · Disclosed · since 21 Oct 2026 · CVE-2026-114054

    AI
  5. closed7.5
    vLLM CVE-2026-114051: vLLM input validation check omission causes denial of service

    Patch now · Disclosed · since 21 Oct 2026 · CVE-2026-114051

    AI
  6. closed6.3
    vLLM CVE-2026-114049: vLLM cross-request mask leak vulnerability

    Patch now · Disclosed · since 21 Oct 2026 · CVE-2026-114049

    AI