CVE-2026-68408: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-x755-7343-mr27
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Advisory Summary

CVE-2026-68408 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-2026-68408 at a Glance

CVE Identifier CVE-2026-68408
GHSA Identifier GHSA-x755-7343-mr27
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-2026-68408

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-2026-68408, 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: wifi: cfg80211: convert pmsr_free_wk to wiphy_work to fix deadlock When a netlink socket that owns a PMSR session is closed, cfg80211_release_pmsr() clears the request's nl_portid and queues pmsr_free_wk to call cfg80211_pmsr_process_abort() asynchronously. If the interface tears down concurrently, cfg80211_pmsr_wdev_down() is called under wiphy_lock and calls cancel_work_sync(&pmsr_free_wk) to wait for any running work. The work function acquires wiphy_lock via guard(wiphy) before calling process_abort. This is a deadlock: wdev_down holds wiphy_lock and blocks inside cancel_work_sync(); pmsr_free_wk blocks trying to acquire that same wiphy_lock. Neither thread can proceed. The same deadlock is reachable from cfg80211_leave_locked(), which calls cfg80211_pmsr_wdev_down() for all interface types under wiphy_lock. Fix this by converting pmsr_free_wk from a plain work_struct to a wiphy_work. The wiphy_work dispatcher holds wiphy_lock when running work items, so the explicit guard(wiphy) in the work function is no longer needed. wiphy_work_cancel() can be called safely while holding wiphy_lock - since wiphy_lock prevents the work from running concurrently, wiphy_work_cancel() never blocks, eliminating the deadlock. Remove the cancel_work_sync() for pmsr_free_wk from the NETDEV_GOING_DOWN handler. cfg80211_leave(), called unconditionally just before it, already cancels any pending work under wiphy_lock via wiphy_work_cancel() inside cfg80211_pmsr_wdev_down().

References

NVD — CVE-2026-68408 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68408
git.kernel.org/stable/c/0a77d9fb4d... WEB
https://git.kernel.org/stable/c/0a77d9fb4d5c0e01306cd406ffdee8f1fe955c0e
git.kernel.org/stable/c/133684982d... WEB
https://git.kernel.org/stable/c/133684982dd0c24359fcc641d19d89cc17d6e5ef
git.kernel.org/stable/c/21512b5f7a... WEB
https://git.kernel.org/stable/c/21512b5f7a74fd18c996c22e6854efe57d570816
git.kernel.org/stable/c/2b0eab425e... WEB
https://git.kernel.org/stable/c/2b0eab425e1f658d8fe1df7590e3b9af5959505e

Frequently Asked Questions

What is CVE-2026-68408?
CVE-2026-68408 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-2026-68408?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-68408?
CVE-2026-68408 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-68408?
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-x755-7343-mr27",
  "modified" : "2026-08-10T15:33:50Z",
  "published" : "2026-08-10T15:33:50Z",
  "aliases" : [ "CVE-2026-68408" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: convert pmsr_free_wk to wiphy_work to fix deadlock\n\nWhen a netlink socket that owns a PMSR session is closed,\ncfg80211_release_pmsr() clears the request's nl_portid and queues\npmsr_free_wk to call cfg80211_pmsr_process_abort() asynchronously.\n\nIf the interface tears down concurrently, cfg80211_pmsr_wdev_down()\nis called under wiphy_lock and calls cancel_work_sync(&pmsr_free_wk)\nto wait for any running work. The work function acquires wiphy_lock\nvia guard(wiphy) before calling process_abort.\n\nThis is a deadlock: wdev_down holds wiphy_lock and blocks inside\ncancel_work_sync(); pmsr_free_wk blocks trying to acquire that same\nwiphy_lock. Neither thread can proceed.\n\nThe same deadlock is reachable from cfg80211_leave_locked(), which\ncalls cfg80211_pmsr_wdev_down() for all interface types under\nwiphy_lock.\n\nFix this by converting pmsr_free_wk from a plain work_struct to a\nwiphy_work. The wiphy_work dispatcher holds wiphy_lock when running\nwork items, so the explicit guard(wiphy) in the work function is no\nlonger needed. wiphy_work_cancel() can be called safely while holding\nwiphy_lock - since wiphy_lock prevents the work from running\nconcurrently, wiphy_work_cancel() never blocks, eliminating the\ndeadlock.\n\nRemove the cancel_work_sync() for pmsr_free_wk from the\nNETDEV_GOING_DOWN handler. cfg80211_leave(), called unconditionally\njust before it, already cancels any pending work under wiphy_lock\nvia wiphy_work_cancel() inside cfg80211_pmsr_wdev_down().",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68408"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0a77d9fb4d5c0e01306cd406ffdee8f1fe955c0e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/133684982dd0c24359fcc641d19d89cc17d6e5ef"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/21512b5f7a74fd18c996c22e6854efe57d570816"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2b0eab425e1f658d8fe1df7590e3b9af5959505e"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:20:34Z"
  }
}