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archive/Patch now/AIR-2026-0150
closedclosed 18 Sep 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-93592: Input validation flaw in vLLM embeddings and pooling endpoints

vLLM

vLLM versions before 0.28.0 fail to validate lower bounds of token IDs in embedding endpoints, enabling unauthenticated attackers to crash the engine. Submitting negative token IDs triggers a CUDA device assertion that poisons the GPU context.

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 54% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
18 Sep 2026
last update
18 Sep 2026
CVE ids
CVE-2026-93592other records

Timeline · 1

  1. 18 Sep 2026CVE-2026-93592: vLLM versions before 0.28.0 fail to validate the lower bound of token IDs in the /v1/embeddings and /pooling endpoints, allowing…

Sources · 1

Advisories and databases

  1. 2026-09-18
    CVE-2026-93592: vLLM versions before 0.28.0 fail to validate the lower bound of token IDs in the /v1/embeddings and /pooling endpoints, allowing…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-93592

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 18 Sep 2026 · first reported 18 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-2026-93592: Input validation flaw in vLLM embeddings and pooling endpoints

https://gcdradar.vercel.app/incidents/cve-2026-93592-input-validation-flaw-in-vllm-embeddings-and · AIR-2026-0150 · closed 2026-09-18

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-09-18
- AI role: Attack on AI
- Products: vLLM
- CVE ids: CVE-2026-93592
- CVSS: 8.7

## Summary

vLLM versions before 0.28.0 fail to validate lower bounds of token IDs in embedding endpoints, enabling unauthenticated attackers to crash the engine. Submitting negative token IDs triggers a CUDA device assertion that poisons the GPU context.

## What to do

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

## Latest updates

- 2026-09-18: CVE-2026-93592: vLLM versions before 0.28.0 fail to validate the lower bound of token IDs in the /v1/embeddings and /pooling endpoints, allowing… (https://nvd.nist.gov/vuln/detail/CVE-2026-93592)

## Sources

- 2026-09-18 NVD: CVE-2026-93592: vLLM versions before 0.28.0 fail to validate the lower bound of token IDs in the /v1/embeddings and /pooling endpoints, allowing… https://nvd.nist.gov/vuln/detail/CVE-2026-93592

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

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