CVE-2026-80845: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-cpc7-qx2r-p3m3
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Advisory Summary

CVE-2026-80845 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80845 at a Glance

CVE Identifier CVE-2026-80845
GHSA Identifier GHSA-cpc7-qx2r-p3m3
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-80845

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-2026-80845, 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: xfrm: avoid lock inversion in nat keepalive work nat_keepalive_work() walks the state table while xfrm_state_walk() holds net->xfrm.xfrm_state_lock. Its callback then acquires x->lock, which conflicts with the delete path taking the same locks in reverse order via xfrm_state_delete() and __xfrm_state_delete(). This creates an AB-BA deadlock that is reported by lockdep when a NAT keepalive worker races with SA deletion. Fix this by splitting the keepalive walk into two phases. First, collect the candidate states while the walk holds xfrm_state_lock and take a reference on each state. Then, after the walk completes, process each collected state and acquire x->lock without nesting it under xfrm_state_lock.

References

NVD — CVE-2026-80845 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80845
git.kernel.org/stable/c/5c86c895d1... WEB
https://git.kernel.org/stable/c/5c86c895d1cac81a71ead3005084c6265cf6a7a5
git.kernel.org/stable/c/763fe700b7... WEB
https://git.kernel.org/stable/c/763fe700b7c58ad64fe5202c5638848244dd4127
git.kernel.org/stable/c/89ef3a2e1e... WEB
https://git.kernel.org/stable/c/89ef3a2e1e4682ab82b0455ce113f8c39fb9e50d
git.kernel.org/stable/c/a9fa05b7a1... WEB
https://git.kernel.org/stable/c/a9fa05b7a1246797748d15771052639e0d3cabf1
git.kernel.org/stable/c/ea09210462... WEB
https://git.kernel.org/stable/c/ea09210462316e5235a25eccb11ad0708d86615e

Frequently Asked Questions

What is CVE-2026-80845?
CVE-2026-80845 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-2026-80845?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80845?
CVE-2026-80845 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80845?
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-cpc7-qx2r-p3m3",
  "modified" : "2026-09-04T18:31:29Z",
  "published" : "2026-09-04T18:31:28Z",
  "aliases" : [ "CVE-2026-80845" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: avoid lock inversion in nat keepalive work\n\nnat_keepalive_work() walks the state table while xfrm_state_walk()\nholds net->xfrm.xfrm_state_lock. Its callback then acquires x->lock,\nwhich conflicts with the delete path taking the same locks in reverse\norder via xfrm_state_delete() and __xfrm_state_delete(). This creates\nan AB-BA deadlock that is reported by lockdep when a NAT keepalive\nworker races with SA deletion.\n\nFix this by splitting the keepalive walk into two phases. First,\ncollect the candidate states while the walk holds xfrm_state_lock and\ntake a reference on each state. Then, after the walk completes, process\neach collected state and acquire x->lock without nesting it under\nxfrm_state_lock.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80845"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5c86c895d1cac81a71ead3005084c6265cf6a7a5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/763fe700b7c58ad64fe5202c5638848244dd4127"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/89ef3a2e1e4682ab82b0455ce113f8c39fb9e50d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a9fa05b7a1246797748d15771052639e0d3cabf1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ea09210462316e5235a25eccb11ad0708d86615e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-04T16:18:13Z"
  }
}