CVE-2026-68236: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-mrj4-jj6w-2fxx
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CVSS 7.8
CWE-415
Published
Advisory Summary

CVE-2026-68236 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-415: Double Free) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product calls free() twice on the same memory address.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-68236 at a Glance

CVE Identifier CVE-2026-68236
GHSA Identifier GHSA-mrj4-jj6w-2fxx
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-415: Double Free
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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:U/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 Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-68236

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-2026-68236, 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-415: Double Free, where the product calls free() twice on the same memory address. 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: drm/amd/display: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but does not set the pointer to NULL. If a later error (e.g., color management failure) triggers the fail label, the error path calls dc_stream_release() again on the same dangling pointer, causing a double release and potential use-after-free. Fix this by setting new_stream to NULL after the initial release. (cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)

References

NVD — CVE-2026-68236 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68236
git.kernel.org/stable/c/01ba5b3689... WEB
https://git.kernel.org/stable/c/01ba5b36898d6258f584269537cc49e7b05cf7c6
git.kernel.org/stable/c/0676fecbb5... WEB
https://git.kernel.org/stable/c/0676fecbb5242aa22c057e78326d6d6041db034c
git.kernel.org/stable/c/5182e442e6... WEB
https://git.kernel.org/stable/c/5182e442e61397d446c36995b8f5676942d35b82
git.kernel.org/stable/c/679f23f0a3... WEB
https://git.kernel.org/stable/c/679f23f0a3606afcef1ffabd72222f00a54ad9e3
git.kernel.org/stable/c/92b7c6e3a1... WEB
https://git.kernel.org/stable/c/92b7c6e3a1546c6db868b07e93fa6fb950d1d3a0
git.kernel.org/stable/c/9fa26b9eed... WEB
https://git.kernel.org/stable/c/9fa26b9eed6195bf840f39ac183b9a6237548755
git.kernel.org/stable/c/ba8bf1dcbb... WEB
https://git.kernel.org/stable/c/ba8bf1dcbb44773e7a0fd13b42925c644e0d5e76
git.kernel.org/stable/c/bf9c06c70f... WEB
https://git.kernel.org/stable/c/bf9c06c70f496f1ba4474caf95c69696c828340e

Frequently Asked Questions

What is CVE-2026-68236?
CVE-2026-68236 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-415: Double Free.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-68236?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-68236?
CVE-2026-68236 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-68236?
CVE-2026-68236 is classified under CWE-415: Double Free (The product calls free() twice on the same memory address.).
How can I check Maven dependencies for CVE-2026-68236?
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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  "id" : "GHSA-mrj4-jj6w-2fxx",
  "modified" : "2026-10-03T12:31:02Z",
  "published" : "2026-08-10T15:33:42Z",
  "aliases" : [ "CVE-2026-68236" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: set new_stream to NULL after release\n\nIn dm_update_crtc_state(), the skip_modeset path releases new_stream\nvia dc_stream_release() but does not set the pointer to NULL.\n\nIf a later error (e.g., color management failure) triggers the fail\nlabel, the error path calls dc_stream_release() again on the same\ndangling pointer, causing a double release and potential use-after-free.\n\nFix this by setting new_stream to NULL after the initial release.\n\n(cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68236"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/01ba5b36898d6258f584269537cc49e7b05cf7c6"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0676fecbb5242aa22c057e78326d6d6041db034c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5182e442e61397d446c36995b8f5676942d35b82"
  }, {
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    "url" : "https://git.kernel.org/stable/c/ba8bf1dcbb44773e7a0fd13b42925c644e0d5e76"
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    "url" : "https://git.kernel.org/stable/c/bf9c06c70f496f1ba4474caf95c69696c828340e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-415" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:20:11Z"
  }
}