CVE-2026-98309: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-fcmj-9h4r-58r4
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Advisory Summary

CVE-2026-98309 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-2026-98309 at a Glance

CVE Identifier CVE-2026-98309
GHSA Identifier GHSA-fcmj-9h4r-58r4
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-2026-98309

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-2026-98309, 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: drm/vc4: Use managed KMS polling to fix UAF on unbind vc4_kms_load() calls drm_kms_helper_poll_init() but the driver provides no matching drm_kms_helper_poll_fini(). The output poll work stays scheduled after unbind and runs on the freed drm_device: # modprobe vc4; rmmod vc4; sleep 10 BUG: KASAN: slab-use-after-free in delayed_work_timer_fn BUG: KASAN: slab-use-after-free in drm_client_dev_hotplug [drm] Workqueue: events output_poll_execute [drm_kms_helper] Allocated by task 171: __devm_drm_dev_alloc Freed by task 262 (rmmod): drm_dev_put / component_del Use drmm_kms_helper_poll_init() so polling is finalized with the device, as other drivers do.

References

NVD — CVE-2026-98309 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98309
git.kernel.org/stable/c/073a30d75f... WEB
https://git.kernel.org/stable/c/073a30d75f309812ed61af134f24ffef4107b13a
git.kernel.org/stable/c/7f9780df67... WEB
https://git.kernel.org/stable/c/7f9780df677370a19b4ec9764f13b1b82073e0d9
git.kernel.org/stable/c/b6beee927e... WEB
https://git.kernel.org/stable/c/b6beee927e7f4e3142032ff91b2d0417cdddc0f6
git.kernel.org/stable/c/cf0c4432bd... WEB
https://git.kernel.org/stable/c/cf0c4432bda37b02e7d430ff5017228ceb7caf0c
git.kernel.org/stable/c/ee507691c1... WEB
https://git.kernel.org/stable/c/ee507691c18f9fee5d4751e295ab9a7ff31d59ae

Frequently Asked Questions

What is CVE-2026-98309?
CVE-2026-98309 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-2026-98309?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98309?
CVE-2026-98309 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98309?
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-fcmj-9h4r-58r4",
  "modified" : "2026-10-06T09:31:34Z",
  "published" : "2026-10-06T09:31:34Z",
  "aliases" : [ "CVE-2026-98309" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: Use managed KMS polling to fix UAF on unbind\n\nvc4_kms_load() calls drm_kms_helper_poll_init() but the driver provides\nno matching drm_kms_helper_poll_fini(). The output poll work stays\nscheduled after unbind and runs on the freed drm_device:\n\n  # modprobe vc4; rmmod vc4; sleep 10\n  BUG: KASAN: slab-use-after-free in delayed_work_timer_fn\n  BUG: KASAN: slab-use-after-free in drm_client_dev_hotplug [drm]\n  Workqueue: events output_poll_execute [drm_kms_helper]\n  Allocated by task 171: __devm_drm_dev_alloc\n  Freed by task 262 (rmmod): drm_dev_put / component_del\n\nUse drmm_kms_helper_poll_init() so polling is finalized with the device,\nas other drivers do.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98309"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/073a30d75f309812ed61af134f24ffef4107b13a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7f9780df677370a19b4ec9764f13b1b82073e0d9"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b6beee927e7f4e3142032ff91b2d0417cdddc0f6"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cf0c4432bda37b02e7d430ff5017228ceb7caf0c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ee507691c18f9fee5d4751e295ab9a7ff31d59ae"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-06T09:18:22Z"
  }
}