CVE-2026-64370: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-cp5v-2q38-79vc
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CVSS 5.5
Published
Advisory Summary

CVE-2026-64370 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64370 at a Glance

CVE Identifier CVE-2026-64370
GHSA Identifier GHSA-cp5v-2q38-79vc
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification General Security Weakness
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-2026-64370

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-2026-64370, 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: posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path In do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference via get_pid() and stores it in timer.it.cpu.pid. If the subsequent posix_cpu_timer_set() call fails, the function returns immediately without calling posix_cpu_timer_del() to release the pid reference, causing a leak. Fix it by calling posix_cpu_timer_del() before the unlock-and-return on the error path, consistent with the other exit paths in the same function.

References

NVD — CVE-2026-64370 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64370
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-019113.html
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-457936.html
git.kernel.org/stable/c/7776f9226e... WEB
https://git.kernel.org/stable/c/7776f9226e99eb49d97492b0b445027cfcb189da
git.kernel.org/stable/c/87bd2ad568... WEB
https://git.kernel.org/stable/c/87bd2ad568e15b90d5f7d4bcd70342d05dad649c
git.kernel.org/stable/c/8a270b1258... WEB
https://git.kernel.org/stable/c/8a270b1258797f61b61da44f8bfd41a581b5c85b
git.kernel.org/stable/c/8f06363446... WEB
https://git.kernel.org/stable/c/8f06363446c5d043c9a7c008b250040e9de98cf9
git.kernel.org/stable/c/afed3cdc1c... WEB
https://git.kernel.org/stable/c/afed3cdc1cca133f804fcf57ff228974f424b23a
git.kernel.org/stable/c/d605d00085... WEB
https://git.kernel.org/stable/c/d605d00085adc3fddf67de01dc2a44aebf1a3fb5
git.kernel.org/stable/c/e5ffc638fa... WEB
https://git.kernel.org/stable/c/e5ffc638faf5dc7d9dc85c9a95e10bf97442e0c0
git.kernel.org/stable/c/eb4cec29a7... WEB
https://git.kernel.org/stable/c/eb4cec29a78334d09bcfb41c0660cdd62ba05843

Frequently Asked Questions

What is CVE-2026-64370?
CVE-2026-64370 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-2026-64370?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64370?
CVE-2026-64370 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-2026-64370?
CVE-2026-64370 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-64370?
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 
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  "id" : "GHSA-cp5v-2q38-79vc",
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  "published" : "2026-07-25T12:31:33Z",
  "aliases" : [ "CVE-2026-64370" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nposix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path\n\nIn do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference\nvia get_pid() and stores it in timer.it.cpu.pid. If the subsequent\nposix_cpu_timer_set() call fails, the function returns immediately\nwithout calling posix_cpu_timer_del() to release the pid reference,\ncausing a leak.\n\nFix it by calling posix_cpu_timer_del() before the unlock-and-return\non the error path, consistent with the other exit paths in the same\nfunction.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
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    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-25T10:17:19Z"
  }
}