CVE-2026-80548: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-ccx7-24wp-j32x
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CVSS 8.8
Published
Advisory Summary

CVE-2026-80548 is a HIGH (CVSS 8.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-80548 at a Glance

CVE Identifier CVE-2026-80548
GHSA Identifier GHSA-ccx7-24wp-j32x
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

How to Fix CVE-2026-80548

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-2026-80548, 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: Selectively expand io_mutex The io_mutex was defined to serialize the io_regions, but then has also sort of been associated with the I/O themselves because of the close relationship they share. With the handful of races that are possible, the choices are either to: A) expand the scope of io_mutex to close these remaining windows, or B) reduce the scope of io_mutex to just io_region, and introduce a new lock mechanism for the remaining I/O resources This patch implements A, since B brings with it a lot more interactions that would need to be tracked and kept in a correct hierarchy. It also takes advantage of the workqueue element for cp_free() that now gets called out of fsm_notoper(), which could be invoked out of an interrupt context and thus cannot acquire a mutex itself.

References

NVD — CVE-2026-80548 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80548
git.kernel.org/stable/c/2a5ac0c0f1... WEB
https://git.kernel.org/stable/c/2a5ac0c0f1f7da33929211a2e41911bf72ee35d8
git.kernel.org/stable/c/2ba9efdf9e... WEB
https://git.kernel.org/stable/c/2ba9efdf9ebedc4e54df4b56aa3b43a65f7967cd
git.kernel.org/stable/c/34f4feff3e... WEB
https://git.kernel.org/stable/c/34f4feff3e90bd09308fad0974e97113b23b812a
git.kernel.org/stable/c/56d7488533... WEB
https://git.kernel.org/stable/c/56d7488533ceac4e986e96e15c9e487a2245bc01
git.kernel.org/stable/c/b6aecea4b2... WEB
https://git.kernel.org/stable/c/b6aecea4b2b246f9fbd98a5712daa1193a60818e
git.kernel.org/stable/c/dab6a6627b... WEB
https://git.kernel.org/stable/c/dab6a6627b0b0cce23653e99c7b0bf8c6cfd82e0
git.kernel.org/stable/c/f72a51810d... WEB
https://git.kernel.org/stable/c/f72a51810d49411bd8cad0c2df8592320a2fe5cc

Frequently Asked Questions

What is CVE-2026-80548?
CVE-2026-80548 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-2026-80548?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-80548?
CVE-2026-80548 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-80548?
CVE-2026-80548 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80548?
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-ccx7-24wp-j32x",
  "modified" : "2026-08-27T15:31:32Z",
  "published" : "2026-08-27T06:31:31Z",
  "aliases" : [ "CVE-2026-80548" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Selectively expand io_mutex\n\nThe io_mutex was defined to serialize the io_regions, but then has\nalso sort of been associated with the I/O themselves because of\nthe close relationship they share.\n\nWith the handful of races that are possible, the choices are either to:\n A) expand the scope of io_mutex to close these remaining windows, or\n B) reduce the scope of io_mutex to just io_region, and introduce a new\n    lock mechanism for the remaining I/O resources\n\nThis patch implements A, since B brings with it a lot more interactions\nthat would need to be tracked and kept in a correct hierarchy. It also\ntakes advantage of the workqueue element for cp_free() that now gets\ncalled out of fsm_notoper(), which could be invoked out of an interrupt\ncontext and thus cannot acquire a mutex itself.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-80548"
  }, {
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    "url" : "https://git.kernel.org/stable/c/2a5ac0c0f1f7da33929211a2e41911bf72ee35d8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2ba9efdf9ebedc4e54df4b56aa3b43a65f7967cd"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/34f4feff3e90bd09308fad0974e97113b23b812a"
  }, {
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f72a51810d49411bd8cad0c2df8592320a2fe5cc"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-26T15:17:09Z"
  }
}