CVE-2026-64227: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-pr66-3h83-6g86
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CVSS 5.5
CWE-476
Published
Advisory Summary

CVE-2026-64227 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64227 at a Glance

CVE Identifier CVE-2026-64227
GHSA Identifier GHSA-pr66-3h83-6g86
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-476: NULL Pointer Dereference
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

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:N/I:N/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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-64227

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-2026-64227, 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 CWE-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. 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: driver: Check ACPI_COMPANION() against NULL during probe Since every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), platform drivers that rely on the existence of a device's ACPI companion object should verify its presence. Accordingly, add requisite ACPI_COMPANION() or ACPI_HANDLE() checks against NULL to 13 platform drivers handling core ACPI devices. Also change the value returned by the ACPI thermal zone driver when the device's ACPI companion is not present to -ENODEV for consistency with the other drivers.

References

NVD — CVE-2026-64227 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64227
git.kernel.org/stable/c/34f4d0e4e5... WEB
https://git.kernel.org/stable/c/34f4d0e4e5065237d15651df759a99e81b7f9f51
git.kernel.org/stable/c/612ddab8fc... WEB
https://git.kernel.org/stable/c/612ddab8fce04394bd7aebe8e0f2599642e30859
git.kernel.org/stable/c/a9451bf561... WEB
https://git.kernel.org/stable/c/a9451bf561232314755baf69a5916e0ac77f33fc
git.kernel.org/stable/c/e4865a56d0... WEB
https://git.kernel.org/stable/c/e4865a56d013e86e46ea6acea15bb6eae01898ff
git.kernel.org/stable/c/f1e12d81f9... WEB
https://git.kernel.org/stable/c/f1e12d81f9cd250e722da01c7670b518d4181406

Frequently Asked Questions

What is CVE-2026-64227?
CVE-2026-64227 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-476: NULL Pointer Dereference.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64227?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64227?
CVE-2026-64227 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-64227?
CVE-2026-64227 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Maven dependencies for CVE-2026-64227?
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-pr66-3h83-6g86",
  "modified" : "2026-08-13T12:31:08Z",
  "published" : "2026-07-24T18:31:27Z",
  "aliases" : [ "CVE-2026-64227" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: driver: Check ACPI_COMPANION() against NULL during probe\n\nSince every platform driver can be forced to match a device that doesn't\nmatch its list of device IDs because of device_match_driver_override(),\nplatform drivers that rely on the existence of a device's ACPI companion\nobject should verify its presence.\n\nAccordingly, add requisite ACPI_COMPANION() or ACPI_HANDLE() checks\nagainst NULL to 13 platform drivers handling core ACPI devices.\n\nAlso change the value returned by the ACPI thermal zone driver when\nthe device's ACPI companion is not present to -ENODEV for consistency\nwith the other drivers.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64227"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/34f4d0e4e5065237d15651df759a99e81b7f9f51"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/612ddab8fce04394bd7aebe8e0f2599642e30859"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a9451bf561232314755baf69a5916e0ac77f33fc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e4865a56d013e86e46ea6acea15bb6eae01898ff"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f1e12d81f9cd250e722da01c7670b518d4181406"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-24T16:16:51Z"
  }
}