CVE-2026-89516: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-99wv-m4hp-r266
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Advisory Summary

CVE-2026-89516 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-2026-89516 at a Glance

CVE Identifier CVE-2026-89516
GHSA Identifier GHSA-99wv-m4hp-r266
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-2026-89516

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-2026-89516, 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: sched_ext: Don't BUG_ON a destroyed DSQ in process_deferred_reenq_users scx_bpf_dsq_reenq() queues a deferred reenq (dru) that runs from run_deferred(), not ops.dispatch(). If the DSQ is destroyed before the dru runs, process_deferred_reenq_users() sees dsq->id == SCX_DSQ_INVALID and hits the BUG_ON. destroy_dsq() doesn't flush pending drus, so just skip. tj: Read dsq->id once with READ_ONCE(). Reading it separately in the INVALID check and the BUG_ON would leave a window where destroy_dsq() can invalidate the id between the two reads and still trigger the BUG_ON.

References

NVD — CVE-2026-89516 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89516
git.kernel.org/stable/c/8d8dd8ae89... WEB
https://git.kernel.org/stable/c/8d8dd8ae89eaa78b37fc85528e926029f5facbdf
git.kernel.org/stable/c/c480961a1e... WEB
https://git.kernel.org/stable/c/c480961a1e790b46ffd8c20c4b6754d65ec6572d

Frequently Asked Questions

What is CVE-2026-89516?
CVE-2026-89516 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-2026-89516?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89516?
CVE-2026-89516 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89516?
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-99wv-m4hp-r266",
  "modified" : "2026-09-11T21:31:30Z",
  "published" : "2026-09-11T21:31:30Z",
  "aliases" : [ "CVE-2026-89516" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Don't BUG_ON a destroyed DSQ in process_deferred_reenq_users\n\nscx_bpf_dsq_reenq() queues a deferred reenq (dru) that runs from\nrun_deferred(), not ops.dispatch(). If the DSQ is destroyed before the dru\nruns, process_deferred_reenq_users() sees dsq->id == SCX_DSQ_INVALID and\nhits the BUG_ON. destroy_dsq() doesn't flush pending drus, so just skip.\n\ntj: Read dsq->id once with READ_ONCE(). Reading it separately in the INVALID\n    check and the BUG_ON would leave a window where destroy_dsq() can\n    invalidate the id between the two reads and still trigger the BUG_ON.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89516"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8d8dd8ae89eaa78b37fc85528e926029f5facbdf"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/c480961a1e790b46ffd8c20c4b6754d65ec6572d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:34Z"
  }
}