CVE-2026-64413: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-48r8-x424-wvc7
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CVSS 7.0
CWE-457 CWE-908
Published
Advisory Summary

CVE-2026-64413 is a HIGH (CVSS 7.0) security vulnerability vulnerability (CWE-457: Use of Uninitialized Variable) affecting Software libraries in the Maven ecosystem. The weakness occurs when the code uses a variable that has not been initialized, leading to unpredictable or unintended results.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64413 at a Glance

CVE Identifier CVE-2026-64413
GHSA Identifier GHSA-48r8-x424-wvc7
Severity HIGH
CVSS v3.1 Base Score 7.0
CWE Classification CWE-457: Use of Uninitialized Variable
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.0

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
Privileges Required Low (PR:L)
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-2026-64413

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-2026-64413, 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-457: Use of Uninitialized Variable, where the code uses a variable that has not been initialized, leading to unpredictable or unintended results. 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: netfilter: ebtables: zero chainstack array sashiko reports: looking at ebtables table translation, could a sparse cpu_possible_mask lead to an uninitialized pointer free? If cpu_possible_mask is sparse (for example, CPU 0 and CPU 2 are possible, but CPU 1 is not), the allocation loop skips CPU 1. If vmalloc_node() fails at CPU 2, the cleanup loop will blindly decrement and call vfree() on newinfo->chainstack[1]. Not a real-world bug, such allocation isn't expected to fail in the first place.

References

NVD — CVE-2026-64413 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64413
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/29bf41a9b5... WEB
https://git.kernel.org/stable/c/29bf41a9b59aff9f6197df58641a00037d567ca8
git.kernel.org/stable/c/2ade612967... WEB
https://git.kernel.org/stable/c/2ade612967e2cdfb9290ebcb773f302c82f311fa
git.kernel.org/stable/c/42bef500d0... WEB
https://git.kernel.org/stable/c/42bef500d07b5769d916e9122a3e3fa3fd2245ef
git.kernel.org/stable/c/5ee856e420... WEB
https://git.kernel.org/stable/c/5ee856e4208acafaaaf7b84824d39b78c21345d6
git.kernel.org/stable/c/9e6c5169db... WEB
https://git.kernel.org/stable/c/9e6c5169db423e51dcc66a73fd15409c0d38e088
git.kernel.org/stable/c/9f74d28e90... WEB
https://git.kernel.org/stable/c/9f74d28e903fa4fdf82f870d0aeadddc8196e41c
git.kernel.org/stable/c/cbfe53599e... WEB
https://git.kernel.org/stable/c/cbfe53599eebffd188938ab6774cc41794f6f9d5
git.kernel.org/stable/c/fc7f105451... WEB
https://git.kernel.org/stable/c/fc7f105451044501a50cfd530cfa3b472c54acbc

Frequently Asked Questions

What is CVE-2026-64413?
CVE-2026-64413 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-457: Use of Uninitialized Variable.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64413?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64413?
CVE-2026-64413 has a CVSS v3.1 base score of 7.0 (HIGH) with vector string CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-64413?
CVE-2026-64413 is classified under CWE-457: Use of Uninitialized Variable (The code uses a variable that has not been initialized, leading to unpredictable or unintended results.).
How can I check Maven dependencies for CVE-2026-64413?
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-48r8-x424-wvc7",
  "modified" : "2026-10-15T03:36:21Z",
  "published" : "2026-07-25T12:31:34Z",
  "aliases" : [ "CVE-2026-64413" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ebtables: zero chainstack array\n\nsashiko reports:\n looking at ebtables table\n translation, could a sparse cpu_possible_mask lead to an uninitialized pointer\n free?\n\n If cpu_possible_mask is sparse (for example, CPU 0 and CPU 2 are possible,\n but CPU 1 is not), the allocation loop skips CPU 1. If vmalloc_node() fails at\n CPU 2, the cleanup loop will blindly decrement and call vfree() on\n newinfo->chainstack[1].\n\nNot a real-world bug, such allocation isn't expected to fail\nin the first place.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64413"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"
  }, {
    "type" : "WEB",
    "url" : "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/29bf41a9b59aff9f6197df58641a00037d567ca8"
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    "type" : "WEB",
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    "url" : "https://git.kernel.org/stable/c/9e6c5169db423e51dcc66a73fd15409c0d38e088"
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    "url" : "https://git.kernel.org/stable/c/9f74d28e903fa4fdf82f870d0aeadddc8196e41c"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fc7f105451044501a50cfd530cfa3b472c54acbc"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-457", "CWE-908" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-25T10:17:25Z"
  }
}