CVE-2026-80846: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-7qhp-m2hr-xxjv
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Advisory Summary

CVE-2026-80846 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-2026-80846 at a Glance

CVE Identifier CVE-2026-80846
GHSA Identifier GHSA-7qhp-m2hr-xxjv
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-2026-80846

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-2026-80846, 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: drop ESP-in-TCP packets with no ingress device ESP-in-TCP receives records through the TCP strparser. handle_esp() restores skb->dev from the saved skb_iif before passing the packet into the XFRM input path. Queued TCP data can be processed after the original ingress device has been removed, for example during veth or net namespace teardown. In that case dev_get_by_index_rcu() returns NULL. The XFRM IPv4 and IPv6 input paths both expect skb->dev to be valid while building the route lookup, so queued ESP-in-TCP data can dereference a NULL device. Drop the packet if the saved ingress device can no longer be resolved. Such a packet can no longer be routed through the normal XFRM receive path, and this preserves the existing behaviour for packets whose ingress device still exists.

References

NVD — CVE-2026-80846 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80846
git.kernel.org/stable/c/239d0f71af... WEB
https://git.kernel.org/stable/c/239d0f71af09dc2029fd4d730cb24b8c83aaa43a
git.kernel.org/stable/c/2dd1609cad... WEB
https://git.kernel.org/stable/c/2dd1609cadff46c4b20ce53b91ab9cce1380456a
git.kernel.org/stable/c/328e40aa77... WEB
https://git.kernel.org/stable/c/328e40aa774b446969c69b654c52a051a95af8a1
git.kernel.org/stable/c/6af5cdb038... WEB
https://git.kernel.org/stable/c/6af5cdb03819a5ce6e945992635c6c5e91045367
git.kernel.org/stable/c/7911e02366... WEB
https://git.kernel.org/stable/c/7911e0236616487b89db6bd3ba3f408abd10eb23
git.kernel.org/stable/c/943d95233b... WEB
https://git.kernel.org/stable/c/943d95233b8b4a88994e244fcf466f8c403d63f1
git.kernel.org/stable/c/c296d25efb... WEB
https://git.kernel.org/stable/c/c296d25efbc840be24de83f56d43bc47e714ace9
git.kernel.org/stable/c/e1d7c5ac1c... WEB
https://git.kernel.org/stable/c/e1d7c5ac1c246ce5775f604515de0a59fbf2116e
git.kernel.org/stable/c/f00235f9d1... WEB
https://git.kernel.org/stable/c/f00235f9d12301183d61f75fbe4105506f3e5140

Frequently Asked Questions

What is CVE-2026-80846?
CVE-2026-80846 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-2026-80846?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80846?
CVE-2026-80846 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80846?
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-7qhp-m2hr-xxjv",
  "modified" : "2026-09-04T18:31:29Z",
  "published" : "2026-09-04T18:31:28Z",
  "aliases" : [ "CVE-2026-80846" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: drop ESP-in-TCP packets with no ingress device\n\nESP-in-TCP receives records through the TCP strparser. handle_esp()\nrestores skb->dev from the saved skb_iif before passing the packet into\nthe XFRM input path.\n\nQueued TCP data can be processed after the original ingress device has\nbeen removed, for example during veth or net namespace teardown. In that\ncase dev_get_by_index_rcu() returns NULL. The XFRM IPv4 and IPv6 input\npaths both expect skb->dev to be valid while building the route lookup,\nso queued ESP-in-TCP data can dereference a NULL device.\n\nDrop the packet if the saved ingress device can no longer be resolved.\nSuch a packet can no longer be routed through the normal XFRM receive\npath, and this preserves the existing behaviour for packets whose ingress\ndevice still exists.",
  "severity" : [ ],
  "affected" : [ ],
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    "type" : "ADVISORY",
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2dd1609cadff46c4b20ce53b91ab9cce1380456a"
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  "database_specific" : {
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    "github_reviewed" : false,
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    "nvd_published_at" : "2026-09-04T16:18:13Z"
  }
}