CVE-2026-89769: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-8vp9-2h56-3438
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CVSS 7.4
Published
Advisory Summary

CVE-2026-89769 is a HIGH (CVSS 7.4) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89769 at a Glance

CVE Identifier CVE-2026-89769
GHSA Identifier GHSA-8vp9-2h56-3438
Severity HIGH
CVSS v3.1 Base Score 7.4
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
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-2026-89769

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-2026-89769, 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: clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhp_setup_state error path When cpuhp_setup_state fails after pit_clockevent_per_cpu_init has successfully called request_irq, the error handling jumps directly to out_pit_clocksource_unregister without freeing the registered IRQ. This leaks the IRQ line and, since kfree(pit) follows, leaves a dangling pointer registered as the interrupt handler's dev_id, potentially leading to a use-after-free if the IRQ fires afterwards. Fix it by calling pit_clockevent_per_cpu_exit to properly release the IRQ before falling through to the existing cleanup chain.

References

NVD — CVE-2026-89769 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89769
git.kernel.org/stable/c/05520e035f... WEB
https://git.kernel.org/stable/c/05520e035f8332c8e33f3011b5ca016fde61793d
git.kernel.org/stable/c/cdcd861123... WEB
https://git.kernel.org/stable/c/cdcd861123248e871c2ec2be968b0a1b2a5a34b0
git.kernel.org/stable/c/d53c29a89a... WEB
https://git.kernel.org/stable/c/d53c29a89a15e56a1797f3ef249955e544782e04

Frequently Asked Questions

What is CVE-2026-89769?
CVE-2026-89769 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-2026-89769?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89769?
CVE-2026-89769 has a CVSS v3.1 base score of 7.4 (HIGH) with vector string CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-89769?
CVE-2026-89769 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89769?
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-8vp9-2h56-3438",
  "modified" : "2026-09-13T09:32:30Z",
  "published" : "2026-09-11T21:31:39Z",
  "aliases" : [ "CVE-2026-89769" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nclocksource/drivers/nxp-pit: Fix IRQ leak on cpuhp_setup_state error path\n\nWhen cpuhp_setup_state fails after pit_clockevent_per_cpu_init has\nsuccessfully called request_irq, the error handling jumps directly to\nout_pit_clocksource_unregister without freeing the registered IRQ.\n\nThis leaks the IRQ line and, since kfree(pit) follows, leaves a\ndangling pointer registered as the interrupt handler's dev_id,\npotentially leading to a use-after-free if the IRQ fires afterwards.\n\nFix it by calling pit_clockevent_per_cpu_exit to properly release the\nIRQ before falling through to the existing cleanup chain.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89769"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/05520e035f8332c8e33f3011b5ca016fde61793d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cdcd861123248e871c2ec2be968b0a1b2a5a34b0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d53c29a89a15e56a1797f3ef249955e544782e04"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:20:08Z"
  }
}