CVE-2026-64079: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-vgxq-4vm2-qmp7
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CVSS 5.5
CWE-476
Published
Advisory Summary

CVE-2026-64079 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-2026-64079 at a Glance

CVE Identifier CVE-2026-64079
GHSA Identifier GHSA-vgxq-4vm2-qmp7
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-2026-64079

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-2026-64079, 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: netfilter: x_tables: allocate hook ops while under mutex arp/ip(6)t_register_table() add the table to the per-netns list via xt_register_table() before allocating the per-netns hook ops copy via kmemdup_array(). This leaves a window where the table is visible in the list with ops=NULL. If the pernet exit happens runs concurrently the pre_exit callback finds the table via xt_find_table() and passes the NULL ops pointer to nf_unregister_net_hooks(), causing a NULL dereference: general protection fault in nf_unregister_net_hooks+0xbc/0x150 RIP: nf_unregister_net_hooks (net/netfilter/core.c:613) Call Trace: ipt_unregister_table_pre_exit iptable_mangle_net_pre_exit ops_pre_exit_list cleanup_net Fix by moving the ops allocation into the xtables core so the table is never in the list without valid ops. Also ensure the table is no longer processing packets before its torn down on error unwind. nf_register_net_hooks might have published at least one hook; call synchronize_rcu() if there was an error. audit log register message gets deferred until all operations have passed, this avoids need to emit another ureg message in case of error unwinding. Based on earlier patch by Tristan Madani.

References

NVD — CVE-2026-64079 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64079
git.kernel.org/stable/c/2f92c5f923... WEB
https://git.kernel.org/stable/c/2f92c5f923979f37ab1d5445381e4b8378a196cc
git.kernel.org/stable/c/b62eb8dcf2... WEB
https://git.kernel.org/stable/c/b62eb8dcf2c47d4d676a434efbd57c4f776f7829
git.kernel.org/stable/c/f669571a2b... WEB
https://git.kernel.org/stable/c/f669571a2bf5067f50091cc598df9613663ee226

Frequently Asked Questions

What is CVE-2026-64079?
CVE-2026-64079 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-2026-64079?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64079?
CVE-2026-64079 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-2026-64079?
CVE-2026-64079 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-2026-64079?
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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  "schema_version" : "1.4.0",
  "id" : "GHSA-vgxq-4vm2-qmp7",
  "modified" : "2026-10-15T12:30:39Z",
  "published" : "2026-07-19T18:31:51Z",
  "aliases" : [ "CVE-2026-64079" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: x_tables: allocate hook ops while under mutex\n\narp/ip(6)t_register_table() add the table to the per-netns list via\nxt_register_table() before allocating the per-netns hook ops copy\nvia kmemdup_array().  This leaves a window where the table is\nvisible in the list with ops=NULL.\n\nIf the pernet exit happens runs concurrently the pre_exit callback finds\nthe table via xt_find_table() and passes the NULL ops pointer to\nnf_unregister_net_hooks(), causing a NULL dereference:\n\n  general protection fault in nf_unregister_net_hooks+0xbc/0x150\n  RIP: nf_unregister_net_hooks (net/netfilter/core.c:613)\n  Call Trace:\n    ipt_unregister_table_pre_exit\n    iptable_mangle_net_pre_exit\n    ops_pre_exit_list\n    cleanup_net\n\nFix by moving the ops allocation into the xtables core so the table is\nnever in the list without valid ops.  Also ensure the table is no longer\nprocessing packets before its torn down on error unwind.\nnf_register_net_hooks might have published at least one hook; call\nsynchronize_rcu() if there was an error.\n\naudit log register message gets deferred until all operations have\npassed, this avoids need to emit another ureg message in case of\nerror unwinding.\n\nBased on earlier patch by Tristan Madani.",
  "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-2026-64079"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2f92c5f923979f37ab1d5445381e4b8378a196cc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b62eb8dcf2c47d4d676a434efbd57c4f776f7829"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f669571a2bf5067f50091cc598df9613663ee226"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:48Z"
  }
}