CVE-2026-64042: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-h9jg-4972-qw48
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CVSS 8.8
CWE-862
Published
Advisory Summary

CVE-2026-64042 is a HIGH (CVSS 8.8) security vulnerability vulnerability (CWE-862: Missing Authorization) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not perform an authorization check when an actor attempts to access a resource or perform an action.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64042 at a Glance

CVE Identifier CVE-2026-64042
GHSA Identifier GHSA-h9jg-4972-qw48
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-862: Missing Authorization
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-64042

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-2026-64042, 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-862: Missing Authorization, where the product does not perform an authorization check when an actor attempts to access a resource or perform an action. 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

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Check BAR resources before exporting a DMABUF A DMABUF exports access to BAR resources and, although they are requested at startup time, we need to ensure they really were reserved before exporting. Otherwise, it's possible to access unreserved resources through the export. Add a check to the DMABUF-creation path.

References

NVD — CVE-2026-64042 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64042
git.kernel.org/stable/c/702809dabd... WEB
https://git.kernel.org/stable/c/702809dabdecca807bdd50cfdcc1c980feb2ba62
git.kernel.org/stable/c/8443cd4497... WEB
https://git.kernel.org/stable/c/8443cd4497a4498c4b01058d76a92116244cb605

Frequently Asked Questions

What is CVE-2026-64042?
CVE-2026-64042 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-862: Missing Authorization.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64042?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64042?
CVE-2026-64042 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-64042?
CVE-2026-64042 is classified under CWE-862: Missing Authorization (The product does not perform an authorization check when an actor attempts to access a resource or perform an action.).
How can I check Maven dependencies for CVE-2026-64042?
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-h9jg-4972-qw48",
  "modified" : "2026-07-20T15:31:56Z",
  "published" : "2026-07-19T18:31:50Z",
  "aliases" : [ "CVE-2026-64042" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Check BAR resources before exporting a DMABUF\n\nA DMABUF exports access to BAR resources and, although they are\nrequested at startup time, we need to ensure they really were reserved\nbefore exporting.  Otherwise, it's possible to access unreserved\nresources through the export.\n\nAdd a check to the DMABUF-creation path.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64042"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/702809dabdecca807bdd50cfdcc1c980feb2ba62"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8443cd4497a4498c4b01058d76a92116244cb605"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-862" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:44Z"
  }
}