CVE-2026-64475: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-mj56-4c42-9869
Share
CVSS 8.8
CWE-416
Published
Advisory Summary

CVE-2026-64475 is a HIGH (CVSS 8.8) security vulnerability vulnerability (CWE-416: Use After Free) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64475 at a Glance

CVE Identifier CVE-2026-64475
GHSA Identifier GHSA-mj56-4c42-9869
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-416: Use After Free
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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:C/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 Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-64475

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-2026-64475, 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-416: Use After Free, where the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. 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: vfio/pci: Release the VGA arbiter client on register_device() failure The re-order in the Fixes commit below displaced vfio_pci_vga_init() as the last failure point of what is now vfio_pci_core_register_device() without introducing an unwind for the VGA arbiter registration. In current kernels this is mostly benign because vfio_pci_set_decode() only uses pci_dev state, but the original failure path could leave a callback with a freed vdev cookie. The stale registration also becomes unsafe again once the callback follows drvdata to the vfio device. Add the required VGA unwind callout.

References

NVD — CVE-2026-64475 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64475
git.kernel.org/stable/c/0f2a35a0c7... WEB
https://git.kernel.org/stable/c/0f2a35a0c7ea7da347b814750eaa78adf3582381
git.kernel.org/stable/c/278a5659c3... WEB
https://git.kernel.org/stable/c/278a5659c391fe5afe5f9ce1bad1fd24e90144f1
git.kernel.org/stable/c/42d758a09d... WEB
https://git.kernel.org/stable/c/42d758a09d2c46c42357ecde9a5492f015bde2e5
git.kernel.org/stable/c/52adb2dff7... WEB
https://git.kernel.org/stable/c/52adb2dff7ce3d8430e2bdc5988b618a430def85
git.kernel.org/stable/c/8d65decde9... WEB
https://git.kernel.org/stable/c/8d65decde9afd2bd78bcfffdc0df73b82a0b5509
git.kernel.org/stable/c/9e0a3f642e... WEB
https://git.kernel.org/stable/c/9e0a3f642e607848669235f5069f35640abbfc88
git.kernel.org/stable/c/daedde7f02... WEB
https://git.kernel.org/stable/c/daedde7f024ecf88bc8e832ed40cf2c795f0796a
git.kernel.org/stable/c/ef4c38d30b... WEB
https://git.kernel.org/stable/c/ef4c38d30b3744e89eb5048218904bb629ea8d47

Frequently Asked Questions

What is CVE-2026-64475?
CVE-2026-64475 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-416: Use After Free.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64475?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64475?
CVE-2026-64475 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-64475?
CVE-2026-64475 is classified under CWE-416: Use After Free (The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.).
How can I check Maven dependencies for CVE-2026-64475?
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-mj56-4c42-9869",
  "modified" : "2026-07-27T06:30:39Z",
  "published" : "2026-07-25T12:31:37Z",
  "aliases" : [ "CVE-2026-64475" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Release the VGA arbiter client on register_device() failure\n\nThe re-order in the Fixes commit below displaced vfio_pci_vga_init() as\nthe last failure point of what is now vfio_pci_core_register_device()\nwithout introducing an unwind for the VGA arbiter registration.\n\nIn current kernels this is mostly benign because vfio_pci_set_decode()\nonly uses pci_dev state, but the original failure path could leave a\ncallback with a freed vdev cookie.  The stale registration also becomes\nunsafe again once the callback follows drvdata to the vfio device.\n\nAdd the required VGA unwind callout.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64475"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0f2a35a0c7ea7da347b814750eaa78adf3582381"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/278a5659c391fe5afe5f9ce1bad1fd24e90144f1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/42d758a09d2c46c42357ecde9a5492f015bde2e5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/52adb2dff7ce3d8430e2bdc5988b618a430def85"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8d65decde9afd2bd78bcfffdc0df73b82a0b5509"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9e0a3f642e607848669235f5069f35640abbfc88"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/daedde7f024ecf88bc8e832ed40cf2c795f0796a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ef4c38d30b3744e89eb5048218904bb629ea8d47"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-416" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-25T10:17:32Z"
  }
}