CVE-2026-80554: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-42gq-4mc2-p2hw
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CVSS 9.3
Published
Advisory Summary

CVE-2026-80554 is a CRITICAL (CVSS 9.3) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80554 at a Glance

CVE Identifier CVE-2026-80554
GHSA Identifier GHSA-42gq-4mc2-p2hw
Severity CRITICAL
CVSS v3.1 Base Score 9.3
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.3

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

How to Fix CVE-2026-80554

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-2026-80554, 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/vfio_ccw: Limit the number of channel program segments The processing of channel programs, and the CCWs within them, is done recursively. As such, there is an arbitrary (but not architectural) limit to the number of CCWs that can exist in a single channel program. The vfio-ccw logic breaks these channel programs into segments whenever it encounters a Transfer-In-Channel (TIC) CCW, and the combined number of segments count towards the global limit. Impose an equivalent limit to the number of segments until such logic can be made non-recursive.

References

NVD — CVE-2026-80554 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80554
git.kernel.org/stable/c/06f4d6e5a8... WEB
https://git.kernel.org/stable/c/06f4d6e5a8af6c2072e8cd39dbc512c683ca7fb2
git.kernel.org/stable/c/15fb4559a7... WEB
https://git.kernel.org/stable/c/15fb4559a7fdf0b8725e433a71cfd03a1313a48b
git.kernel.org/stable/c/4ee9479049... WEB
https://git.kernel.org/stable/c/4ee94790490ae8dcc97df8597f07836c8a81bbcf
git.kernel.org/stable/c/5405c90d6a... WEB
https://git.kernel.org/stable/c/5405c90d6a47b3014e74ee0618a162449abbbc93
git.kernel.org/stable/c/a1625f66ea... WEB
https://git.kernel.org/stable/c/a1625f66eaa1200068a0e2c05bc90e65182fc4e3

Frequently Asked Questions

What is CVE-2026-80554?
CVE-2026-80554 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-2026-80554?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80554?
CVE-2026-80554 has a CVSS v3.1 base score of 9.3 (CRITICAL) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-80554?
CVE-2026-80554 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80554?
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-42gq-4mc2-p2hw",
  "modified" : "2026-08-27T06:31:32Z",
  "published" : "2026-08-27T06:31:32Z",
  "aliases" : [ "CVE-2026-80554" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Limit the number of channel program segments\n\nThe processing of channel programs, and the CCWs within them, is done\nrecursively. As such, there is an arbitrary (but not architectural)\nlimit to the number of CCWs that can exist in a single channel program.\n\nThe vfio-ccw logic breaks these channel programs into segments whenever\nit encounters a Transfer-In-Channel (TIC) CCW, and the combined number\nof segments count towards the global limit. Impose an equivalent limit\nto the number of segments until such logic can be made non-recursive.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80554"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/06f4d6e5a8af6c2072e8cd39dbc512c683ca7fb2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/15fb4559a7fdf0b8725e433a71cfd03a1313a48b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4ee94790490ae8dcc97df8597f07836c8a81bbcf"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5405c90d6a47b3014e74ee0618a162449abbbc93"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a1625f66eaa1200068a0e2c05bc90e65182fc4e3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-26T15:17:09Z"
  }
}