CVE-2026-93288: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-56j7-mrx8-v649
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CVSS 7.8
Published
Advisory Summary

CVE-2026-93288 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-93288 at a Glance

CVE Identifier CVE-2026-93288
GHSA Identifier GHSA-56j7-mrx8-v649
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

How to Fix CVE-2026-93288

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-2026-93288, 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: netfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state sashiko reports: "nfnl_log_net_exit() calls nf_log_unset(), which clears the logger pointer without an RCU grace period. Immediately after, ops_free_list() frees the per-net state while concurrent packets might still be executing nf_log_packet() under rcu_read_lock()." Clear the pointer via .pre_exit to make sure rcu readers have completed before pernet storage is free'd. The change in nf_log_syslog.c is only done for consistency: it doesn't use pernet data.

References

NVD — CVE-2026-93288 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-93288
git.kernel.org/stable/c/33d1469b01... WEB
https://git.kernel.org/stable/c/33d1469b0124cc0baaea7a2032123b77a81e0940
git.kernel.org/stable/c/3b9aa62d78... WEB
https://git.kernel.org/stable/c/3b9aa62d78ce80de47af2db472ff452398755213
git.kernel.org/stable/c/5570d6c8b3... WEB
https://git.kernel.org/stable/c/5570d6c8b320dbcc602617ee08c27ce752fed65a
git.kernel.org/stable/c/ba2e246aa2... WEB
https://git.kernel.org/stable/c/ba2e246aa294f9acd86194ea87fb6834ed0a37ac
git.kernel.org/stable/c/dc20050b6b... WEB
https://git.kernel.org/stable/c/dc20050b6b12ca58066715d088e1a537535d938d
git.kernel.org/stable/c/f446165437... WEB
https://git.kernel.org/stable/c/f4461654374576e9d5d0245fd534c46ad8509051

Frequently Asked Questions

What is CVE-2026-93288?
CVE-2026-93288 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-2026-93288?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-93288?
CVE-2026-93288 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-93288?
CVE-2026-93288 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-93288?
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-56j7-mrx8-v649",
  "modified" : "2026-10-03T12:31:08Z",
  "published" : "2026-09-24T18:31:28Z",
  "aliases" : [ "CVE-2026-93288" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nfnetlink_log: wait for rcu grace period before freeing pernet state\n\nsashiko reports: \"nfnl_log_net_exit() calls nf_log_unset(), which\nclears the logger pointer without an RCU grace period.  Immediately after,\nops_free_list() frees the per-net state while concurrent packets might\nstill be executing nf_log_packet() under rcu_read_lock().\"\n\nClear the pointer via .pre_exit to make sure rcu readers have completed\nbefore pernet storage is free'd.  The change in nf_log_syslog.c is only\ndone for consistency: it doesn't use pernet data.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-93288"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/33d1469b0124cc0baaea7a2032123b77a81e0940"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3b9aa62d78ce80de47af2db472ff452398755213"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5570d6c8b320dbcc602617ee08c27ce752fed65a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ba2e246aa294f9acd86194ea87fb6834ed0a37ac"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/dc20050b6b12ca58066715d088e1a537535d938d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f4461654374576e9d5d0245fd534c46ad8509051"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-24T17:17:10Z"
  }
}