CVE-2026-93251: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-2qvg-p8g6-fm8w
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Advisory Summary

CVE-2026-93251 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-2026-93251 at a Glance

CVE Identifier CVE-2026-93251
GHSA Identifier GHSA-2qvg-p8g6-fm8w
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-2026-93251

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-2026-93251, 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: ACPI: bus: Introduce acpi_bus_get_primary_device() The function used for obtaining the first "physical" device for which the given ACPI one is the ACPI companion, acpi_get_first_physical_node(), may return a stale device pointer (mostly in theory) because acpi_unbind_one() may run as a whole after dropping the ACPI device's physical_node_lock in acpi_get_first_physical_node() and before it returns. The last reference to the "physical" device may be dropped then before the pointer to it is returned to the caller. If that happens and the acpi_get_first_physical_node() caller invokes get_device() on the pointer obtained from it, which is done by the majority of its callers, a use-after-free will occur. To prepare for addressing this problem, introduce a new function for getting the first "physical" device associated with the given ACPI one (the "primary physical device") that will also reference count the device in question before returning a pointer to it. Make that new function and acpi_get_first_physical_node() share the physical node list lookup code. No intentional functional impact.

References

NVD — CVE-2026-93251 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93251
git.kernel.org/stable/c/5657859851... WEB
https://git.kernel.org/stable/c/5657859851abb65105220a6cdb5804926249f714
git.kernel.org/stable/c/72530e1f72... WEB
https://git.kernel.org/stable/c/72530e1f72b0515a73fd88292254d04fecf03649
git.kernel.org/stable/c/ebdd932dc2... WEB
https://git.kernel.org/stable/c/ebdd932dc24c1cf7cc31710b7730515e4e66d886

Frequently Asked Questions

What is CVE-2026-93251?
CVE-2026-93251 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-2026-93251?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-93251?
CVE-2026-93251 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93251?
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-2qvg-p8g6-fm8w",
  "modified" : "2026-10-15T12:30:53Z",
  "published" : "2026-09-24T18:31:24Z",
  "aliases" : [ "CVE-2026-93251" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: bus: Introduce acpi_bus_get_primary_device()\n\nThe function used for obtaining the first \"physical\" device for which\nthe given ACPI one is the ACPI companion, acpi_get_first_physical_node(),\nmay return a stale device pointer (mostly in theory) because\nacpi_unbind_one() may run as a whole after dropping the ACPI device's\nphysical_node_lock in acpi_get_first_physical_node() and before it\nreturns.  The last reference to the \"physical\" device may be dropped\nthen before the pointer to it is returned to the caller.\n\nIf that happens and the acpi_get_first_physical_node() caller invokes\nget_device() on the pointer obtained from it, which is done by the\nmajority of its callers, a use-after-free will occur.\n\nTo prepare for addressing this problem, introduce a new function for\ngetting the first \"physical\" device associated with the given ACPI one\n(the \"primary physical device\") that will also reference count the\ndevice in question before returning a pointer to it.\n\nMake that new function and acpi_get_first_physical_node() share the\nphysical node list lookup code.\n\nNo intentional functional impact.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93251"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5657859851abb65105220a6cdb5804926249f714"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/72530e1f72b0515a73fd88292254d04fecf03649"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ebdd932dc24c1cf7cc31710b7730515e4e66d886"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-24T16:17:21Z"
  }
}