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CVE-2026-103241

7.5, high

A flaw has been found in vllm-project vLLM up to 0.26.0

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.5, high high CVSS v3.1
EPSS, next 30 days
0.7% higher than 52.7% of scored CVEs
Exploitation
No public evidence
Published
30 Sept 202617 days ago

Description

A flaw has been found in vllm-project vLLM up to 0.26.0. This vulnerability affects unknown code of the file rust/src/parser/src/unified/gemma4.rs of the component Gemma4UnifiedParser. Executing a manipulation can lead to denial of service. The attack may be launched remotely. The exploit has been published and may be used. Upgrading to version 0.29.1rc0 is able to resolve this issue. This patch is called 3439bad37e68ba9755a46f4f6b44a4aeaf1f60a9. Upgrading the affected component is advised.

Details

Vendor
Vllm-project
Product
vLLM
Weakness
CWE-404 (opens in a new tab)
Status
Analyzed
Updated
6 Oct 2026
Assigner
cna@vuldb.com

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

References 10

Patches and fixes 3

Advisories 3

Other references 4

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Vllm-project CVEs

Every Vllm-project CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-105759 Vllm-project vllm Uncontrolled Resource Consumption Vulnerability EPSS 0.3% 7.5, high
  • CVE-2026-100647 Vllm-project vllm Improper Input Validation Vulnerability EPSS 0.3% 7.5, high
  • CVE-2026-100652 Vllm-project vllm Improper Input Validation Vulnerability EPSS 0.4% 7.5, high
  • CVE-2026-90554 Vllm-project vLLM Uncontrolled Resource Consumption Vulnerability EPSS 0.2% 7.5, high

Beyond this page

Is CVE-2026-103241 in your network?

This page tells you how dangerous CVE-2026-103241 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Find it before attackers do

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.