CVE-2026-64408: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-mgrm-7xvj-2jr3
Share
CVSS 8.8
CWE-416
Published
Advisory Summary

CVE-2026-64408 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 any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer..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-2026-64408 at a Glance

CVE Identifier CVE-2026-64408
GHSA Identifier GHSA-mgrm-7xvj-2jr3
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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Adjacent (AV:A)
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-2026-64408

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-2026-64408, 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: Bluetooth: bnep: pin L2CAP connection during netdev registration bnep_add_connection() reads the L2CAP connection without holding the channel lock, then passes its HCI device to register_netdev(). Controller teardown can clear and release that connection concurrently, leaving the network device registration path to dereference a freed parent device. Take a reference to the L2CAP connection while holding the channel lock. Retain it until register_netdev() has taken the parent device reference.

References

NVD — CVE-2026-64408 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64408
git.kernel.org/stable/c/390b5db3ff... WEB
https://git.kernel.org/stable/c/390b5db3ff8745187f094c4e915663b7b1f98944
git.kernel.org/stable/c/46a88784c4... WEB
https://git.kernel.org/stable/c/46a88784c4c9b96954dd86f747ce93f65efa1302
git.kernel.org/stable/c/551ae773ec... WEB
https://git.kernel.org/stable/c/551ae773ec64045b4e72099132654887e0270bcc
git.kernel.org/stable/c/563a857304... WEB
https://git.kernel.org/stable/c/563a8573047182f550b1e1e030615755cd8c41da
git.kernel.org/stable/c/a6b22dbd80... WEB
https://git.kernel.org/stable/c/a6b22dbd80926556290ad2243be25218d6956a19
git.kernel.org/stable/c/ae215c5b64... WEB
https://git.kernel.org/stable/c/ae215c5b6422d8eda443b861b124bd1be6969c31
git.kernel.org/stable/c/bb067a99a0... WEB
https://git.kernel.org/stable/c/bb067a99a0356196c0b89a95721985485ebce5a5
git.kernel.org/stable/c/df22adc7ea... WEB
https://git.kernel.org/stable/c/df22adc7eafc22e651561813c11dc51a796b12ee

Frequently Asked Questions

What is CVE-2026-64408?
CVE-2026-64408 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-2026-64408?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64408?
CVE-2026-64408 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-64408?
CVE-2026-64408 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-2026-64408?
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-mgrm-7xvj-2jr3",
  "modified" : "2026-07-27T06:30:36Z",
  "published" : "2026-07-25T12:31:34Z",
  "aliases" : [ "CVE-2026-64408" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bnep: pin L2CAP connection during netdev registration\n\nbnep_add_connection() reads the L2CAP connection without holding the\nchannel lock, then passes its HCI device to register_netdev(). Controller\nteardown can clear and release that connection concurrently, leaving the\nnetwork device registration path to dereference a freed parent device.\n\nTake a reference to the L2CAP connection while holding the channel lock.\nRetain it until register_netdev() has taken the parent device reference.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/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-2026-64408"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/390b5db3ff8745187f094c4e915663b7b1f98944"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/46a88784c4c9b96954dd86f747ce93f65efa1302"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/551ae773ec64045b4e72099132654887e0270bcc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/563a8573047182f550b1e1e030615755cd8c41da"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a6b22dbd80926556290ad2243be25218d6956a19"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ae215c5b6422d8eda443b861b124bd1be6969c31"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/bb067a99a0356196c0b89a95721985485ebce5a5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/df22adc7eafc22e651561813c11dc51a796b12ee"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-416" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-25T10:17:24Z"
  }
}