CVE-2026-80584: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-cmjf-x265-ccvj
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CVSS 8.4
Published
Advisory Summary

CVE-2026-80584 is a HIGH (CVSS 8.4) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80584 at a Glance

CVE Identifier CVE-2026-80584
GHSA Identifier GHSA-cmjf-x265-ccvj
Severity HIGH
CVSS v3.1 Base Score 8.4
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.4

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

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
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-2026-80584

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-2026-80584, 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: s390/qeth: validate user buffer length in SNMP and ARP query ioctls qeth_snmp_command() and qeth_l3_arp_query() allocate a buffer sized by a user-supplied length (udata_len) without checking a lower bound, then set udata_offset to a fixed non-zero value and pass both to a reply callback. The callback bounds-checks the copy with if ((udata_len - udata_offset) < len) Both fields are u32, so a udata_len smaller than udata_offset makes the subtraction wrap and the check pass, and the following memcpy() writes past the allocation. A udata_len of 0 also yields ZERO_SIZE_PTR from kzalloc(), which the existing NULL check does not catch. Reject buffers smaller than udata_offset before allocating, so the callback subtraction can no longer underflow.

References

NVD — CVE-2026-80584 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80584
git.kernel.org/stable/c/3083818e67... WEB
https://git.kernel.org/stable/c/3083818e67bcd656965797fbac9a3d6c1d44f78a
git.kernel.org/stable/c/46443eadde... WEB
https://git.kernel.org/stable/c/46443eaddebd84c51940857b11787229be169dec
git.kernel.org/stable/c/75fb315151... WEB
https://git.kernel.org/stable/c/75fb3151513d7d9f77a8f9545418279b119c06b8
git.kernel.org/stable/c/91935843f9... WEB
https://git.kernel.org/stable/c/91935843f9396a9e45253e2c0d4337ca1371754b
git.kernel.org/stable/c/9d00eeb2d2... WEB
https://git.kernel.org/stable/c/9d00eeb2d27f4cc817c5e408760226d43f811ec6
git.kernel.org/stable/c/a308364774... WEB
https://git.kernel.org/stable/c/a3083647747942ea32faf14560d6397ff3068046
git.kernel.org/stable/c/cc423f4105... WEB
https://git.kernel.org/stable/c/cc423f4105fe145b33e1d7cad34245a798358f73
git.kernel.org/stable/c/d141f087b1... WEB
https://git.kernel.org/stable/c/d141f087b1af656f055d7c5793a3e87817ba0bbe

Frequently Asked Questions

What is CVE-2026-80584?
CVE-2026-80584 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-2026-80584?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80584?
CVE-2026-80584 has a CVSS v3.1 base score of 8.4 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-80584?
CVE-2026-80584 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80584?
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-cmjf-x265-ccvj",
  "modified" : "2026-08-27T06:31:33Z",
  "published" : "2026-08-27T06:31:33Z",
  "aliases" : [ "CVE-2026-80584" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/qeth: validate user buffer length in SNMP and ARP query ioctls\n\nqeth_snmp_command() and qeth_l3_arp_query() allocate a buffer sized by\na user-supplied length (udata_len) without checking a lower bound, then\nset udata_offset to a fixed non-zero value and pass both to a reply\ncallback. The callback bounds-checks the copy with\n\n        if ((udata_len - udata_offset) < len)\n\nBoth fields are u32, so a udata_len smaller than udata_offset makes the\nsubtraction wrap and the check pass, and the following memcpy() writes\npast the allocation. A udata_len of 0 also yields ZERO_SIZE_PTR from\nkzalloc(), which the existing NULL check does not catch.\n\nReject buffers smaller than udata_offset before allocating, so the\ncallback subtraction can no longer underflow.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
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  "database_specific" : {
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    "severity" : "HIGH",
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    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-26T15:17:14Z"
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}