CVE-2026-89455: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-8qqp-mrfh-pvx7
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Advisory Summary

CVE-2026-89455 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-2026-89455 at a Glance

CVE Identifier CVE-2026-89455
GHSA Identifier GHSA-8qqp-mrfh-pvx7
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-2026-89455

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-2026-89455, 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: PCI: plda: Fix use-after-free of event IRQs during teardown plda_pcie_irq_domain_deinit() removes pcie->event_domain via irq_domain_remove(), but the per-event IRQs mapped from that domain are requested with devm_request_irq() in plda_init_interrupts(). The actual free_irq() for a devm-managed IRQ is deferred by devres until after the calling probe()/remove() function returns. This means irq_domain_remove() can free the domain's internal data before the deferred free_irq() for IRQs still mapped into it has run. When devres later processes that deferred cleanup, it can end up dereferencing the already-freed domain. Free each event IRQ explicitly with devm_free_irq() before removing the domain. This triggers the free immediately and removes the IRQ from the devres tracking list, so devres will not attempt to free it a second time later. Also dispose of the event, INTx, and MSI IRQ mappings with irq_dispose_mapping() before their owning domains are removed. Finally, guard the calls to irq_set_chained_handler_and_data() for pcie->irq, pcie->msi_irq, and pcie->intx_irq so they only run when those fields hold a valid (>0) IRQ number. This is a pre-existing issue, flagged by automated review during work on an earlier, unrelated patch to this driver. Build-tested and boot-tested on StarFive VisionFive v1.2A board

References

NVD — CVE-2026-89455 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89455
git.kernel.org/stable/c/01c2f0c66b... WEB
https://git.kernel.org/stable/c/01c2f0c66bd1f892db9c6e82976da6b463cc4427
git.kernel.org/stable/c/1d0159e139... WEB
https://git.kernel.org/stable/c/1d0159e139261996a3ca21798d9114aab2124d3c
git.kernel.org/stable/c/26b73bae01... WEB
https://git.kernel.org/stable/c/26b73bae01d6eb81a4a38f36101812f20b2639de
git.kernel.org/stable/c/e3589ca5f2... WEB
https://git.kernel.org/stable/c/e3589ca5f2e6477774753a2202c21509428d4701

Frequently Asked Questions

What is CVE-2026-89455?
CVE-2026-89455 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-2026-89455?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-89455?
CVE-2026-89455 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89455?
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-8qqp-mrfh-pvx7",
  "modified" : "2026-09-11T21:31:26Z",
  "published" : "2026-09-11T21:31:26Z",
  "aliases" : [ "CVE-2026-89455" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: plda: Fix use-after-free of event IRQs during teardown\n\nplda_pcie_irq_domain_deinit() removes pcie->event_domain via\nirq_domain_remove(), but the per-event IRQs mapped from that domain\nare requested with devm_request_irq() in plda_init_interrupts(). The\nactual free_irq() for a devm-managed IRQ is deferred by devres until\nafter the calling probe()/remove() function returns.\n\nThis means irq_domain_remove() can free the domain's internal data\nbefore the deferred free_irq() for IRQs still mapped into it has run.\nWhen devres later processes that deferred cleanup, it can end up\ndereferencing the already-freed domain.\n\nFree each event IRQ explicitly with devm_free_irq() before removing\nthe domain. This triggers the free immediately and removes the IRQ\nfrom the devres tracking list, so devres will not attempt to free it\na second time later.\n\nAlso dispose of the event, INTx, and MSI IRQ mappings with\nirq_dispose_mapping() before their owning domains are removed.\n\nFinally, guard the calls to irq_set_chained_handler_and_data() for\npcie->irq, pcie->msi_irq, and pcie->intx_irq so they only run when\nthose fields hold a valid (>0) IRQ number.\n\nThis is a pre-existing issue, flagged by automated review during work\non an earlier, unrelated patch to this driver.\n\nBuild-tested and boot-tested on StarFive VisionFive v1.2A board",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-89455"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/01c2f0c66bd1f892db9c6e82976da6b463cc4427"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1d0159e139261996a3ca21798d9114aab2124d3c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/26b73bae01d6eb81a4a38f36101812f20b2639de"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e3589ca5f2e6477774753a2202c21509428d4701"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-11T20:19:26Z"
  }
}