CVE-2026-72234: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-mcgw-cw9v-8cmp
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CVSS 9.8
Published
Advisory Summary

CVE-2026-72234 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72234 at a Glance

CVE Identifier CVE-2026-72234
GHSA Identifier GHSA-mcgw-cw9v-8cmp
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-72234

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-2026-72234, 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 General Security Weakness. 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: batman-adv: access unicast_ttvn skb->data only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free. This was done correctly for the ethernet header but missed for the unicast_packet pointer.

References

NVD — CVE-2026-72234 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72234
git.kernel.org/stable/c/7141990add... WEB
https://git.kernel.org/stable/c/7141990add3f75436f2933cb310654cad3b1e3e9
git.kernel.org/stable/c/7b162b36de... WEB
https://git.kernel.org/stable/c/7b162b36de750565404cd3b98315706622c6974f
git.kernel.org/stable/c/979175834a... WEB
https://git.kernel.org/stable/c/979175834a699ccc3c4c0b0ba60ecae0f135a587
git.kernel.org/stable/c/9a7b724879... WEB
https://git.kernel.org/stable/c/9a7b7248798123efbd5fafe58461d57c7cc718af
git.kernel.org/stable/c/9c2c05629e... WEB
https://git.kernel.org/stable/c/9c2c05629e46c1fd43931506d41c56a885a98eb4
git.kernel.org/stable/c/aa9558af85... WEB
https://git.kernel.org/stable/c/aa9558af859934f24717d4bab97d61004f91a736
git.kernel.org/stable/c/b8afcf799b... WEB
https://git.kernel.org/stable/c/b8afcf799b2cc92c41beebd029e53ed18960184a
git.kernel.org/stable/c/ed90eb5c68... WEB
https://git.kernel.org/stable/c/ed90eb5c68420cdfe67ec1f773324198d2ef6f50

Frequently Asked Questions

What is CVE-2026-72234?
CVE-2026-72234 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-72234?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72234?
CVE-2026-72234 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-72234?
CVE-2026-72234 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72234?
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-mcgw-cw9v-8cmp",
  "modified" : "2026-08-17T06:33:18Z",
  "published" : "2026-08-15T06:32:16Z",
  "aliases" : [ "CVE-2026-72234" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: access unicast_ttvn skb->data only after skb realloc\n\nThe pskb_may_pull() called by batadv_get_vid() could reallocate the buffer\nbehind the skb. Variables which were pointing to the old buffer need to be\nreassigned to avoid an use-after-free.\n\nThis was done correctly for the ethernet header but missed for the\nunicast_packet pointer.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72234"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7141990add3f75436f2933cb310654cad3b1e3e9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7b162b36de750565404cd3b98315706622c6974f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/979175834a699ccc3c4c0b0ba60ecae0f135a587"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9a7b7248798123efbd5fafe58461d57c7cc718af"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9c2c05629e46c1fd43931506d41c56a885a98eb4"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b8afcf799b2cc92c41beebd029e53ed18960184a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ed90eb5c68420cdfe67ec1f773324198d2ef6f50"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:50Z"
  }
}