CVE-2026-6746: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-r37m-3hw5-974w
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CVSS 7.5
CWE-825 CWE-416
Published
Advisory Summary

CVE-2026-6746 is a HIGH (CVSS 7.5) security vulnerability vulnerability (CWE-825: Expired Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-6746 at a Glance

CVE Identifier CVE-2026-6746
GHSA Identifier GHSA-r37m-3hw5-974w
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-825: Expired Pointer Dereference
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:H).

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 High (A:H)

How to Fix CVE-2026-6746

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-2026-6746, 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-825: Expired Pointer Dereference, where the product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid. 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

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10.

References

NVD — CVE-2026-6746 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6746
access.redhat.com/errata/rhsa-2026:10... WEB
https://access.redhat.com/errata/RHSA-2026:10757
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19465
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19466
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19467
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19468
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19469
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19542
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19655
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19704
Software Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2026-6746
bugzilla.mozilla.org/show_bug.cgi WEB
https://bugzilla.mozilla.org/show_bug.cgi?id=2014596
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=2460112
Software Security Information SECURITY
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6746.json
Software Security Information SECURITY
https://www.mozilla.org/security/advisories/mfsa2026-30
Software Security Information SECURITY
https://www.mozilla.org/security/advisories/mfsa2026-31
Software Security Information SECURITY
https://www.mozilla.org/security/advisories/mfsa2026-32
Software Security Information SECURITY
https://www.mozilla.org/security/advisories/mfsa2026-33
Software Security Information SECURITY
https://www.mozilla.org/security/advisories/mfsa2026-34
access.redhat.com/errata/rhsa-2026:10... WEB
https://access.redhat.com/errata/RHSA-2026:10766
access.redhat.com/errata/rhsa-2026:10... WEB
https://access.redhat.com/errata/RHSA-2026:10767
access.redhat.com/errata/rhsa-2026:12... WEB
https://access.redhat.com/errata/RHSA-2026:12285
access.redhat.com/errata/rhsa-2026:13... WEB
https://access.redhat.com/errata/RHSA-2026:13537
access.redhat.com/errata/rhsa-2026:15... WEB
https://access.redhat.com/errata/RHSA-2026:15892
access.redhat.com/errata/rhsa-2026:17... WEB
https://access.redhat.com/errata/RHSA-2026:17477
access.redhat.com/errata/rhsa-2026:17... WEB
https://access.redhat.com/errata/RHSA-2026:17687
access.redhat.com/errata/rhsa-2026:17... WEB
https://access.redhat.com/errata/RHSA-2026:17688
access.redhat.com/errata/rhsa-2026:17... WEB
https://access.redhat.com/errata/RHSA-2026:17689
access.redhat.com/errata/rhsa-2026:17... WEB
https://access.redhat.com/errata/RHSA-2026:17690
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19041
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19131
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19201
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19348
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19461
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19462
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19463
access.redhat.com/errata/rhsa-2026:19... WEB
https://access.redhat.com/errata/RHSA-2026:19464

Frequently Asked Questions

What is CVE-2026-6746?
CVE-2026-6746 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-825: Expired Pointer Dereference.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-6746?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-6746?
CVE-2026-6746 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-6746?
CVE-2026-6746 is classified under CWE-825: Expired Pointer Dereference (The product dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid.).
How can I check Maven dependencies for CVE-2026-6746?
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 
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