CVE-2026-44222

Description

vLLM is an inference and serving engine for large language models (LLMs). From 0.6.1 to before 0.20.0, there is a a Token Injection vulnerability in vLLM’s multimodal processing. Unauthenticated, text-only prompts that spell special tokens are interpreted as control. Image and video placeholder sequences supplied without matching data cause vLLM to index into empty grids during input-position computation, raising an unhandled IndexError and terminating the worker or degrading availability. Multimodal paths that rely on image_grid_thw/video_grid_thw are affected. This vulnerability is fixed in 0.20.0.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: MEDIUM
CVSS score: 6.5 / 10
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Effective score: 6.5 / 10 MEDIUM source: CNA overview
CWE(s): CWE-129
Reserved: 2026-05-05
Published: 2026-05-12 21:57 UTC
Last updated: 2026-05-13 14:24 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/44xxx/CVE-2026-44222.json
Linked Threat: CVE-2026-44222 — CVE-2026-44222

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-05-12 20:16:43 UTC
NVD last modified: 2026-05-14 15:38:19 UTC
NVD CVSS v3.1: 6.5 / 10 MEDIUM source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 3.6 / 10
EPSS score: 0.0001 (probability of exploitation in next 30 days)
EPSS percentile: 3.07% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-29799
Assigner: GitHub_M
Published: May 12, 2026, 7:57:25 PM
Updated: May 13, 2026, 12:24:53 PM
EUVD base score (CVSS 3.1): 6.5 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EUVD-reported EPSS: 0.0100
Vendors: vllm-project
Products: vllm (0.6.1, < 0.20.0)
Aliases: GHSA-hpv8-x276-m59f

ENISA description: vLLM is an inference and serving engine for large language models (LLMs). From 0.6.1 to before 0.20.0, there is a a Token Injection vulnerability in vLLM’s multimodal processing. Unauthenticated, text-only prompts that spell special tokens are interpreted as control. Image and video placeholder sequences supplied without matching data cause vLLM to index into empty grids during input-position computation, raising an unhandled IndexError and terminating the worker or degrading availability. Multimodal paths that rely on image_grid_thw/video_grid_thw are affected. This vulnerability is fixed in 0.20.0.

EUVD references (2)

Affected products (1)

Vendor	Product	Versions	Platforms
vllm-project	vllm	`>= 0.6.1, < 0.20.0` (affected)	—

Affected products — CPE 2.3 (1) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:*

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

https://github.com/vllm-project/vllm/security/advisories/GHSA-hpv8-x276-m59f x_refsource_CONFIRM
https://github.com/vllm-project/vllm/issues/32656 x_refsource_MISC

MITRE references (2) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

https://github.com/vllm-project/vllm/issues/32656 x_refsource_MISC
https://github.com/vllm-project/vllm/security/advisories/GHSA-hpv8-x276-m59f x_refsource_CONFIRM

Web references (3)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

https://nvd.nist.gov/vuln/detail/CVE-2026-44222 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-44222 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org

NVD-tagged references (2)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/vllm-project/vllm/issues/32656 security-advisories@github.com Issue Tracking
https://github.com/vllm-project/vllm/security/advisories/GHSA-hpv8-x276-m59f security-advisories@github.com ExploitVendor Advisory

Remediations (17)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Security Updates - Red Hat Customer Portal

web:access.redhat.com

Learn about our open source products, services, and company. You are here

2026-05-23 20:56 UTC
Adobe Security Bulletin

web:helpx.adobe.com

Adobe has released a security update for Adobe Acrobat and Reader for Windows and macOS. This update addresses critical and important vulnerabilities. Successful exploitation could lead to arbitrary code execution and arbitrary file system read. Adobe is not aware of any exploits in the wild for any of the issues addressed in these updates.

2026-05-23 20:56 UTC
Patch Tuesday, May 2026 Edition - Krebs on Security

web:krebsonsecurity.com

Microsoft expects that exploitation is more likely. May's Patch Tuesday is a welcome respite from April, which saw Microsoft fix a near-record 167 security flaws.

2026-05-23 20:56 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-23 20:56 UTC
Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...

web:support.servicenow.com

Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

2026-05-23 20:56 UTC
Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws

web:www.bleepingcomputer.com

Today is Microsoft's March 2026 Patch Tuesday with security updates for 79 flaws, including 2 publicly disclosed zero-day vulnerabilities.

2026-05-23 20:56 UTC
April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike

web:www.crowdstrike.com

Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

2026-05-23 20:56 UTC
Oracle Critical Patch Update (CPU) for 2026 Fixes 337 ... - LinkedIn

web:www.linkedin.com

Oracle has released its January 2026 Critical Patch Update (CPU), a wide-ranging security bulletin that addresses 337 newly identified vulnerabilities across a broad spectrum of its enterprise ...

2026-05-23 20:56 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-05-23 20:56 UTC
VirusTotal - Home

web:www.virustotal.com

VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.

2026-05-23 20:56 UTC
Oracle Critical Patch Update, April 2026 Security Update Review

web:blog.qualys.com

Oracle released its second quarterly edition of this year's Critical Patch Update. The update received patches for 481 security vulnerabilities.

2026-05-26 02:53 UTC
Security Advisory Bulletin 064 | Ubiquiti Community

web:community.ui.com

Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...

2026-05-26 02:53 UTC
Patching : Find the Required Patches for Oracle Products

web:oracle-base.com

This post describes how to identify the required patches for your Oracle products.

2026-05-26 02:53 UTC
A guide to vulnerability remediation vs mitigation | @Bugcrowd

web:www.bugcrowd.com

Vulnerability mitigation is typically considered a temporary or interim solution. While mitigation measures can reduce the immediate risk associated with vulnerabilities, they may not provide a permanent fix . Organizations should aim to prioritize and plan for complete vulnerability remediation whenever feasible and allocate resources accordingly.

2026-05-26 02:53 UTC
Microsoft Technical Security Notifications

web:www.microsoft.com

Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.

2026-05-26 02:53 UTC
Oracle Patches 450 Vulnerabilities With April 2026 CPU

web:www.securityweek.com

Oracle on Tuesday announced the release of 481 new security patches as part of its April 2026 Critical Patch Update (CPU). Across the 28 product families that received security updates, more than 300 patches address vulnerabilities that are remotely exploitable without authentication.

2026-05-26 02:53 UTC
Patch Tuesday May 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-05-26 02:53 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-44222.json.

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