CVE-2026-80626: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-j46p-7hmv-qpv9
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Advisory Summary

CVE-2026-80626 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-2026-80626 at a Glance

CVE Identifier CVE-2026-80626
GHSA Identifier GHSA-j46p-7hmv-qpv9
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-2026-80626

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-2026-80626, 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: powerpc/perf: fix preempt count underflow in fsl_emb_pmu_del fsl_emb_pmu_del() unconditionally calls put_cpu_var(cpu_hw_events) at the 'out:' label, but only calls the matching get_cpu_var() after the 'i < 0' early-return check. When event->hw.idx is negative the function jumps to 'out:' without having taken get_cpu_var(), and the trailing put_cpu_var() then issues an unmatched preempt_enable(), underflowing preempt_count. On a CONFIG_PREEMPT=y kernel preempt_count would underflow and eventually present as a 'scheduling while atomic' BUG. Move put_cpu_var() to pair with get_cpu_var() so the percpu access is correctly bracketed and the 'out:' label only handles perf_pmu_enable.

References

NVD — CVE-2026-80626 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-80626
git.kernel.org/stable/c/5397142d60... WEB
https://git.kernel.org/stable/c/5397142d60aa29dcf636f5459d960bfc4f97c42a
git.kernel.org/stable/c/67aeb1eb93... WEB
https://git.kernel.org/stable/c/67aeb1eb93d4ffd898a3e74a7f3fe46ee71feb28
git.kernel.org/stable/c/7371168847... WEB
https://git.kernel.org/stable/c/73711688479df333acc134e3730fff1acba1843e
git.kernel.org/stable/c/81e3a86030... WEB
https://git.kernel.org/stable/c/81e3a86030462824a67d697739cf3f387f4ba350
git.kernel.org/stable/c/9a515e00b0... WEB
https://git.kernel.org/stable/c/9a515e00b00132b6fc3f1dd62dc5204bbda8cb10
git.kernel.org/stable/c/b504fd9536... WEB
https://git.kernel.org/stable/c/b504fd953664c3f4d176ae8cb594adb3fda9d577
git.kernel.org/stable/c/b89477077c... WEB
https://git.kernel.org/stable/c/b89477077c834d94381c7bf07d81193bebefcff9
git.kernel.org/stable/c/c0c7722308... WEB
https://git.kernel.org/stable/c/c0c7722308c5f303117d8bd555290fdf26b098da

Frequently Asked Questions

What is CVE-2026-80626?
CVE-2026-80626 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-2026-80626?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-80626?
CVE-2026-80626 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-80626?
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-j46p-7hmv-qpv9",
  "modified" : "2026-08-28T09:31:47Z",
  "published" : "2026-08-28T09:31:47Z",
  "aliases" : [ "CVE-2026-80626" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/perf: fix preempt count underflow in fsl_emb_pmu_del\n\nfsl_emb_pmu_del() unconditionally calls put_cpu_var(cpu_hw_events) at\nthe 'out:' label, but only calls the matching get_cpu_var() after the\n'i < 0' early-return check. When event->hw.idx is negative the\nfunction jumps to 'out:' without having taken get_cpu_var(), and the\ntrailing put_cpu_var() then issues an unmatched preempt_enable(),\nunderflowing preempt_count.\n\nOn a CONFIG_PREEMPT=y kernel preempt_count would underflow and\neventually present as a 'scheduling while atomic' BUG.\n\nMove put_cpu_var() to pair with get_cpu_var() so the percpu access is\ncorrectly bracketed and the 'out:' label only handles perf_pmu_enable.",
  "severity" : [ ],
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