CVE-2026-98645: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-m8vm-rrf4-qcx2
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Advisory Summary

CVE-2026-98645 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-2026-98645 at a Glance

CVE Identifier CVE-2026-98645
GHSA Identifier GHSA-m8vm-rrf4-qcx2
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-2026-98645

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-2026-98645, 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: HID: winwing: fix use-after-free in force feedback teardown winwing_init_ff() passes the driver's private data, allocated with devm_kzalloc() in winwing_probe(), as the effect context to input_ff_create_memless(). The memoryless force-feedback core takes ownership of that pointer and frees it with kfree() from input_ff_destroy() (ml_ff_destroy()) when the input device is destroyed. Freeing a devm-managed allocation with kfree() is an invalid free, and the same object is then released again by devres when the HID device is torn down, a double free. As the allocation also embeds the LED class devices, their timers and work item live on freed memory and the slab gets corrupted. This triggers on unbind, rmmod, hot-unplug and on system suspend, where the firmware cache walks the now-corrupt devres list. KASAN reports: BUG: KASAN: invalid-free in input_ff_destroy Allocated by task N: winwing_probe Pass NULL as the memless context instead and fetch the driver data from the input device in winwing_play_effect(): the HID core already stores the hid_device as the input device's drvdata. The force-feedback core then owns nothing that it must not free.

References

NVD — CVE-2026-98645 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98645
git.kernel.org/stable/c/2b25f11ec5... WEB
https://git.kernel.org/stable/c/2b25f11ec52ea0a82334d5b83ee321f6b0a35923
git.kernel.org/stable/c/a1a5ad37e5... WEB
https://git.kernel.org/stable/c/a1a5ad37e50ceb192c07ac7e2d7143638cd4d110

Frequently Asked Questions

What is CVE-2026-98645?
CVE-2026-98645 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-2026-98645?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98645?
CVE-2026-98645 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98645?
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-m8vm-rrf4-qcx2",
  "modified" : "2026-10-18T18:31:57Z",
  "published" : "2026-10-18T18:31:57Z",
  "aliases" : [ "CVE-2026-98645" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: winwing: fix use-after-free in force feedback teardown\n\nwinwing_init_ff() passes the driver's private data, allocated with\ndevm_kzalloc() in winwing_probe(), as the effect context to\ninput_ff_create_memless(). The memoryless force-feedback core takes\nownership of that pointer and frees it with kfree() from\ninput_ff_destroy() (ml_ff_destroy()) when the input device is\ndestroyed.\n\nFreeing a devm-managed allocation with kfree() is an invalid free, and\nthe same object is then released again by devres when the HID device is\ntorn down, a double free. As the allocation also embeds the LED class\ndevices, their timers and work item live on freed memory and the slab\ngets corrupted. This triggers on unbind, rmmod, hot-unplug and on system\nsuspend, where the firmware cache walks the now-corrupt devres list.\nKASAN reports:\n\n  BUG: KASAN: invalid-free in input_ff_destroy\n  Allocated by task N:\n    winwing_probe\n\nPass NULL as the memless context instead and fetch the driver data from\nthe input device in winwing_play_effect(): the HID core already stores\nthe hid_device as the input device's drvdata. The force-feedback core\nthen owns nothing that it must not free.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98645"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2b25f11ec52ea0a82334d5b83ee321f6b0a35923"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a1a5ad37e50ceb192c07ac7e2d7143638cd4d110"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:17Z"
  }
}