CVE-2026-103241: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-328r-mpfv-qc55
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CVSS 5.3
CWE-404
Published
Advisory Summary

CVE-2026-103241 is a MODERATE (CVSS 5.3) security vulnerability vulnerability (CWE-404: Improper Resource Shutdown or Release) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not release or incorrectly releases a resource before it is made available for re-use.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-103241 at a Glance

CVE Identifier CVE-2026-103241
GHSA Identifier GHSA-328r-mpfv-qc55
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-404: Improper Resource Shutdown or Release
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2026-103241

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-103241, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-404: Improper Resource Shutdown or Release, where the product does not release or incorrectly releases a resource before it is made available for re-use. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

References

NVD — CVE-2026-103241 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-103241
Software Source Repository REPOSITORY
https://github.com/vllm-project/vllm/issues/50927
Software Source Repository REPOSITORY
https://github.com/vllm-project/vllm/pull/54303
Security Fix Commit FIX COMMIT
https://github.com/vllm-project/vllm/commit/3439bad37e68ba9755a46f4f6b44a4aeaf1f60a9
Software Source Repository REPOSITORY
https://gist.github.com/Yunzez/8e98d656aa667095b513161eb056d28e
Software Source Repository REPOSITORY
https://github.com/vllm-project/vllm
Software Release RELEASE
https://github.com/vllm-project/vllm/releases/tag/v0.29.1rc0
vuldb.com/cve/cve-2026-103241 WEB
https://vuldb.com/cve/CVE-2026-103241
vuldb.com/submit/956250 WEB
https://vuldb.com/submit/956250
vuldb.com/vuln/411965 WEB
https://vuldb.com/vuln/411965
vuldb.com/vuln/411965/cti WEB
https://vuldb.com/vuln/411965/cti

Frequently Asked Questions

What is CVE-2026-103241?
CVE-2026-103241 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-404: Improper Resource Shutdown or Release.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-103241?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-103241?
CVE-2026-103241 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-103241?
CVE-2026-103241 is classified under CWE-404: Improper Resource Shutdown or Release (The product does not release or incorrectly releases a resource before it is made available for re-use.).
How can I check Maven dependencies for CVE-2026-103241?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-328r-mpfv-qc55",
  "modified" : "2026-09-30T18:33:49Z",
  "published" : "2026-09-30T18:33:49Z",
  "aliases" : [ "CVE-2026-103241" ],
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-103241"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vllm-project/vllm/issues/50927"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/vllm-project/vllm/pull/54303"
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    "url" : "https://github.com/vllm-project/vllm/commit/3439bad37e68ba9755a46f4f6b44a4aeaf1f60a9"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/Yunzez/8e98d656aa667095b513161eb056d28e"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://github.com/vllm-project/vllm/releases/tag/v0.29.1rc0"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/cve/CVE-2026-103241"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/956250"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/411965"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/411965/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-404" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-30T17:16:42Z"
  }
}