CVE-2026-89749: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-hwhc-m4xq-f4r2
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Advisory Summary

CVE-2026-89749 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89749 at a Glance

CVE Identifier CVE-2026-89749
GHSA Identifier GHSA-hwhc-m4xq-f4r2
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-89749

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-2026-89749, 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: tracing: Fix crash passing ERR_PTR to kthread_stop() event_test_stuff() calls kthread_run() and unconditionally passes the returned task_struct pointer to kthread_stop(). kthread_run() returns an error pointer such as ERR_PTR(-ENOMEM) when kthread creation fails, for example under memory pressure during the boot-time event self-test. kthread_stop() then dereferences the invalid pointer, crashing the kernel. Check the result of kthread_run() before passing it to kthread_stop(). Use WARN_ON() so that a failure to create the self-test thread does not go unnoticed, matching the ring-buffer self-test fix in commit 91542863abad ("ring-buffer: Fix crash passing ERR_PTR to kthread_stop()").

References

NVD — CVE-2026-89749 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89749
git.kernel.org/stable/c/12a499f741... WEB
https://git.kernel.org/stable/c/12a499f741fc5be3731c8b0a0d909406575cc2eb
git.kernel.org/stable/c/42ccb215ef... WEB
https://git.kernel.org/stable/c/42ccb215ef0a552acbbd32f81009bfe4b278ba77
git.kernel.org/stable/c/649bc7df3e... WEB
https://git.kernel.org/stable/c/649bc7df3e5d7be6f7996a95084037dbf3cad1e5
git.kernel.org/stable/c/98d06fb986... WEB
https://git.kernel.org/stable/c/98d06fb9865a490e12ebe32d65b9ffac6108614d
git.kernel.org/stable/c/adadf4192f... WEB
https://git.kernel.org/stable/c/adadf4192f700bca82abfda9fa6d58c0bf37cc04
git.kernel.org/stable/c/c1a4fb7aa2... WEB
https://git.kernel.org/stable/c/c1a4fb7aa290f158d50654d640292e49d9055fd1
git.kernel.org/stable/c/c40e0b4fa3... WEB
https://git.kernel.org/stable/c/c40e0b4fa365969e67011529eabdfb66d1022256
git.kernel.org/stable/c/ceb1707aef... WEB
https://git.kernel.org/stable/c/ceb1707aef5824cf024eb82d10787b7621e2ff35

Frequently Asked Questions

What is CVE-2026-89749?
CVE-2026-89749 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-2026-89749?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89749?
CVE-2026-89749 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89749?
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-hwhc-m4xq-f4r2",
  "modified" : "2026-09-14T15:32:36Z",
  "published" : "2026-09-11T21:31:39Z",
  "aliases" : [ "CVE-2026-89749" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix crash passing ERR_PTR to kthread_stop()\n\nevent_test_stuff() calls kthread_run() and unconditionally passes the\nreturned task_struct pointer to kthread_stop(). kthread_run() returns an\nerror pointer such as ERR_PTR(-ENOMEM) when kthread creation fails, for\nexample under memory pressure during the boot-time event self-test.\nkthread_stop() then dereferences the invalid pointer, crashing the kernel.\n\nCheck the result of kthread_run() before passing it to kthread_stop(). Use\nWARN_ON() so that a failure to create the self-test thread does not go\nunnoticed, matching the ring-buffer self-test fix in commit\n91542863abad (\"ring-buffer: Fix crash passing ERR_PTR to kthread_stop()\").",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89749"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/12a499f741fc5be3731c8b0a0d909406575cc2eb"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/42ccb215ef0a552acbbd32f81009bfe4b278ba77"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/649bc7df3e5d7be6f7996a95084037dbf3cad1e5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/98d06fb9865a490e12ebe32d65b9ffac6108614d"
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    "url" : "https://git.kernel.org/stable/c/adadf4192f700bca82abfda9fa6d58c0bf37cc04"
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    "type" : "WEB",
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c40e0b4fa365969e67011529eabdfb66d1022256"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ceb1707aef5824cf024eb82d10787b7621e2ff35"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:20:05Z"
  }
}