CVE-2026-89972: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-cjx2-56hv-4vc4
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CVSS 9.8
Published
Advisory Summary

CVE-2026-89972 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-2026-89972 at a Glance

CVE Identifier CVE-2026-89972
GHSA Identifier GHSA-cjx2-56hv-4vc4
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-2026-89972

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-2026-89972, 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: nvme: add missing SRCU grace period in error path nvme_alloc_ns() error path at out_unlink_ns removes ns from the namespace head siblings list with list_del_rcu(&ns->siblings) but does not wait for SRCU readers before freeing the namespace struct. Multipath code iterates the head->list under srcu_read_lock() in nvme_find_path() and nvme_mpath_revalidate_paths(), so a concurrent reader can still hold a reference to ns when kfree(ns) runs. The normal removal path in nvme_ns_remove() correctly calls synchronize_srcu(&ns->head->srcu) after list_del_rcu() to wait for in-progress readers. Add the same grace period in the error path.

References

NVD — CVE-2026-89972 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89972
git.kernel.org/stable/c/0d47354185... WEB
https://git.kernel.org/stable/c/0d4735418512ef825176726eaaa8bd6a35f6b46d
git.kernel.org/stable/c/76023560d6... WEB
https://git.kernel.org/stable/c/76023560d60f10b4f808941163aa2975f1631683
git.kernel.org/stable/c/d663944dba... WEB
https://git.kernel.org/stable/c/d663944dbad81bb0e3635d7090db4713e6300858
git.kernel.org/stable/c/ef248d5de4... WEB
https://git.kernel.org/stable/c/ef248d5de4469fb6bbaf8dbe0c4c47800080d648

Frequently Asked Questions

What is CVE-2026-89972?
CVE-2026-89972 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-2026-89972?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89972?
CVE-2026-89972 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-2026-89972?
CVE-2026-89972 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89972?
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-cjx2-56hv-4vc4",
  "modified" : "2026-10-03T12:31:07Z",
  "published" : "2026-09-16T12:30:43Z",
  "aliases" : [ "CVE-2026-89972" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: add missing SRCU grace period in error path\n\nnvme_alloc_ns() error path at out_unlink_ns removes ns from the\nnamespace head siblings list with list_del_rcu(&ns->siblings) but\ndoes not wait for SRCU readers before freeing the namespace struct.\nMultipath code iterates the head->list under srcu_read_lock() in\nnvme_find_path() and nvme_mpath_revalidate_paths(), so a concurrent\nreader can still hold a reference to ns when kfree(ns) runs.\n\nThe normal removal path in nvme_ns_remove() correctly calls\nsynchronize_srcu(&ns->head->srcu) after list_del_rcu() to wait for\nin-progress readers. Add the same grace period in the error path.",
  "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-2026-89972"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0d4735418512ef825176726eaaa8bd6a35f6b46d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/76023560d60f10b4f808941163aa2975f1631683"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d663944dbad81bb0e3635d7090db4713e6300858"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ef248d5de4469fb6bbaf8dbe0c4c47800080d648"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-16T11:17:07Z"
  }
}