CVE-2026-89854: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-9v3f-qp8w-f486
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CVSS 7.8
Published
Advisory Summary

CVE-2026-89854 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-89854 at a Glance

CVE Identifier CVE-2026-89854
GHSA Identifier GHSA-9v3f-qp8w-f486
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

How to Fix CVE-2026-89854

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-2026-89854, 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: scsi: qla2xxx: Fix cs84xx use-after-free on host teardown qla84xx_put_chip() drops the last reference to ha->cs84xx and frees it via __qla84xx_chip_release() without clearing ha->cs84xx. During teardown it ran before scsi_remove_host(), which is what removes the 84xx_fw_version host sysfs attribute. A concurrent read of that attribute in the window between the two calls executes qla24xx_84xx_fw_version_show(), which dereferences the freed ha->cs84xx, resulting in a use-after-free. Move qla84xx_put_chip() to after scsi_remove_host() in both qla2x00_remove_one() and qla2x00_disable_board_on_pci_error(). Once scsi_remove_host() returns, the sysfs attribute is gone and kernfs has drained any in-flight show(), so no reader can touch cs84xx; the put still runs before the host and ha are freed.

References

NVD — CVE-2026-89854 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89854
git.kernel.org/stable/c/122bf170c9... WEB
https://git.kernel.org/stable/c/122bf170c94a3797531b12fee580639a5dc893ed
git.kernel.org/stable/c/1d8bbc4344... WEB
https://git.kernel.org/stable/c/1d8bbc4344b9367d9d54731475d745fbc9ea28f2
git.kernel.org/stable/c/2c3b17ee53... WEB
https://git.kernel.org/stable/c/2c3b17ee53f034936f7398dbf4d143e608b7c35c
git.kernel.org/stable/c/33d102102d... WEB
https://git.kernel.org/stable/c/33d102102d925357c5fd172dd6672a27d74b3215
git.kernel.org/stable/c/8286a9095f... WEB
https://git.kernel.org/stable/c/8286a9095fb59751fba171afa2b4f590271c87d5
git.kernel.org/stable/c/8c1ebcade6... WEB
https://git.kernel.org/stable/c/8c1ebcade6aac58137f2645b579894301febabf3
git.kernel.org/stable/c/ae09260be7... WEB
https://git.kernel.org/stable/c/ae09260be7454ed7630a913f147591a25e3a9d09
git.kernel.org/stable/c/fcf0804dfe... WEB
https://git.kernel.org/stable/c/fcf0804dfe05862007189ac9dc4dc2063be36de1

Frequently Asked Questions

What is CVE-2026-89854?
CVE-2026-89854 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-2026-89854?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-89854?
CVE-2026-89854 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-89854?
CVE-2026-89854 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-89854?
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-9v3f-qp8w-f486",
  "modified" : "2026-09-16T15:30:59Z",
  "published" : "2026-09-16T12:30:39Z",
  "aliases" : [ "CVE-2026-89854" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix cs84xx use-after-free on host teardown\n\nqla84xx_put_chip() drops the last reference to ha->cs84xx and frees it via\n__qla84xx_chip_release() without clearing ha->cs84xx. During teardown it ran\nbefore scsi_remove_host(), which is what removes the 84xx_fw_version host\nsysfs attribute. A concurrent read of that attribute in the window between\nthe two calls executes qla24xx_84xx_fw_version_show(), which dereferences\nthe freed ha->cs84xx, resulting in a use-after-free.\n\nMove qla84xx_put_chip() to after scsi_remove_host() in both\nqla2x00_remove_one() and qla2x00_disable_board_on_pci_error(). Once\nscsi_remove_host() returns, the sysfs attribute is gone and kernfs has\ndrained any in-flight show(), so no reader can touch cs84xx; the put still\nruns before the host and ha are freed.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-16T11:16:53Z"
  }
}