CVE-2026-68194: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-qgch-244m-5hcp
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Advisory Summary

CVE-2026-68194 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-2026-68194 at a Glance

CVE Identifier CVE-2026-68194
GHSA Identifier GHSA-qgch-244m-5hcp
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-2026-68194

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-2026-68194, 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: mt76: mt7921: drop TXRX_NOTIFY on non-mmio buses PKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7921_rx_check() and mt7921_queue_rx_skb() dispatch it to mt7921_mac_tx_free() on every bus. mt7921_mac_tx_free() cleans the DMA tx queues with mt76_queue_tx_cleanup(), which calls queue_ops->tx_cleanup(). Only the mmio queue ops implement that callback; on USB and SDIO it is NULL, so a TXRX_NOTIFY there calls a NULL pointer in the RX worker: BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:0x0 Call Trace: mt7921_mac_tx_free+0x64/0x310 [mt7921_common] mt7921_rx_check+0x5f/0xf0 [mt7921_common] mt76u_rx_worker+0x1b9/0x620 [mt76_usb] Drop the event on non-mmio buses via mt76_is_mmio(), as in commit 5683e1488aa9 ("wifi: mt76: connac: do not check WED status for non-mmio devices").

References

NVD — CVE-2026-68194 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68194
git.kernel.org/stable/c/24475d2ddc... WEB
https://git.kernel.org/stable/c/24475d2ddc8d8dfd82f4d2be0d951401f86911a6
git.kernel.org/stable/c/263816e92e... WEB
https://git.kernel.org/stable/c/263816e92e8d66c81c98ccab2b5d2191ed08ec71
git.kernel.org/stable/c/7003a2cbdd... WEB
https://git.kernel.org/stable/c/7003a2cbddd7917933c1f169c7874cfa6ab852c3
git.kernel.org/stable/c/da4082e91a... WEB
https://git.kernel.org/stable/c/da4082e91acabc1498611ed8ccc53f0610baefc6
git.kernel.org/stable/c/ecf995b828... WEB
https://git.kernel.org/stable/c/ecf995b828191829ba4a87169bccabcbeb5c9c32
git.kernel.org/stable/c/ef2ee5f820... WEB
https://git.kernel.org/stable/c/ef2ee5f820c3ef87643b51e960c20b4a14d8336b

Frequently Asked Questions

What is CVE-2026-68194?
CVE-2026-68194 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-2026-68194?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-68194?
CVE-2026-68194 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-68194?
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-qgch-244m-5hcp",
  "modified" : "2026-08-19T18:32:10Z",
  "published" : "2026-08-10T15:33:40Z",
  "aliases" : [ "CVE-2026-68194" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: drop TXRX_NOTIFY on non-mmio buses\n\nPKT_TYPE_TXRX_NOTIFY is an mmio-only event, but mt7921_rx_check() and\nmt7921_queue_rx_skb() dispatch it to mt7921_mac_tx_free() on every bus.\nmt7921_mac_tx_free() cleans the DMA tx queues with\nmt76_queue_tx_cleanup(), which calls queue_ops->tx_cleanup(). Only the\nmmio queue ops implement that callback; on USB and SDIO it is NULL, so\na TXRX_NOTIFY there calls a NULL pointer in the RX worker:\n\n  BUG: kernel NULL pointer dereference, address: 0000000000000000\n  RIP: 0010:0x0\n  Call Trace:\n   mt7921_mac_tx_free+0x64/0x310 [mt7921_common]\n   mt7921_rx_check+0x5f/0xf0 [mt7921_common]\n   mt76u_rx_worker+0x1b9/0x620 [mt76_usb]\n\nDrop the event on non-mmio buses via mt76_is_mmio(), as in\ncommit 5683e1488aa9 (\"wifi: mt76: connac: do not check WED status for\nnon-mmio devices\").",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68194"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/24475d2ddc8d8dfd82f4d2be0d951401f86911a6"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/263816e92e8d66c81c98ccab2b5d2191ed08ec71"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7003a2cbddd7917933c1f169c7874cfa6ab852c3"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/da4082e91acabc1498611ed8ccc53f0610baefc6"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ecf995b828191829ba4a87169bccabcbeb5c9c32"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ef2ee5f820c3ef87643b51e960c20b4a14d8336b"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:20:06Z"
  }
}