CVE-2026-89823: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-hjv8-5wf8-79gw
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CVSS 7.8
Published
Advisory Summary

CVE-2026-89823 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89823 at a Glance

CVE Identifier CVE-2026-89823
GHSA Identifier GHSA-hjv8-5wf8-79gw
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
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-2026-89823

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-2026-89823, 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: drm: fix race between partial drm_dev_register() failure and ioctl If drm_dev_register() fails after registering a minor (e.g. render minor registered, primary minor fails), userspace could have opened the first minor and entered a drm_dev_enter() critical section. Since the unplugged flag was never set, the ioctl proceeds while the error path tears down device resources. Fix this by introducing drm_dev_synchronize_unplug(), which sets the unplugged flag and waits for the SRCU barrier, ensuring all in-flight drm_dev_enter() critical sections complete before cleanup proceeds; call it on the error path of drm_dev_register().

References

NVD — CVE-2026-89823 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89823
git.kernel.org/stable/c/19dbfe4d58... WEB
https://git.kernel.org/stable/c/19dbfe4d586aecfed121cb3fa62281761d9d341f
git.kernel.org/stable/c/24d28d15c0... WEB
https://git.kernel.org/stable/c/24d28d15c0f7f7d4a1c229f8730314f0f8758810
git.kernel.org/stable/c/26d9162213... WEB
https://git.kernel.org/stable/c/26d9162213952927cd59c0d94b7e0e992b347bec
git.kernel.org/stable/c/2d1215a721... WEB
https://git.kernel.org/stable/c/2d1215a72159d00001e08dee162e27718934bee9
git.kernel.org/stable/c/6729990df9... WEB
https://git.kernel.org/stable/c/6729990df9e70623bf53f855b521ae71ca9cb278
git.kernel.org/stable/c/79d09cfe90... WEB
https://git.kernel.org/stable/c/79d09cfe90304ff4f195e47d569800f5e0f8b854
git.kernel.org/stable/c/a0a7e2e177... WEB
https://git.kernel.org/stable/c/a0a7e2e177f2f18b9e7318a4c64ac44efd9ef22c
git.kernel.org/stable/c/eb197f7d60... WEB
https://git.kernel.org/stable/c/eb197f7d60f00d0f5b1b3505dfc86a7e36045a3e

Frequently Asked Questions

What is CVE-2026-89823?
CVE-2026-89823 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-2026-89823?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89823?
CVE-2026-89823 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-2026-89823?
CVE-2026-89823 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89823?
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-hjv8-5wf8-79gw",
  "modified" : "2026-09-16T15:30:58Z",
  "published" : "2026-09-16T12:30:38Z",
  "aliases" : [ "CVE-2026-89823" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: fix race between partial drm_dev_register() failure and ioctl\n\nIf drm_dev_register() fails after registering a minor (e.g. render minor\nregistered, primary minor fails), userspace could have opened the first\nminor and entered a drm_dev_enter() critical section. Since the\nunplugged flag was never set, the ioctl proceeds while the error path\ntears down device resources.\n\nFix this by introducing drm_dev_synchronize_unplug(), which sets the\nunplugged flag and waits for the SRCU barrier, ensuring all in-flight\ndrm_dev_enter() critical sections complete before cleanup proceeds; call\nit on the error path of drm_dev_register().",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-16T11:16:48Z"
  }
}