CVE-2026-74366: Software Security Vulnerability Vulnerability

UNKNOWN

Advisory Identifier: GHSA-j4ff-3xfg-cv3g

Published 2026-08-15

Advisory Summary

CVE-2026-74366 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-2026-74366 at a Glance

CVE Identifier CVE-2026-74366

GHSA Identifier GHSA-j4ff-3xfg-cv3g

Severity N/A

CVSS v3.1 Base Score N/A

CWE Classification General Security Weakness

Affected Product Software

Package Ecosystem Maven

Published Date 2026-08-15

Last Updated 2026-08-15

How to Fix CVE-2026-74366

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-2026-74366, 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: ath12k: fix NULL deref in change_sta_links for unready link _ieee80211_set_active_links() calls _ieee80211_link_use_channel() for each newly-added link and WARN_ON_ONCE()s if it fails. The call uses assign_on_failure=true, which allows mac80211 to continue despite driver failures, but when a mac80211-level channel validation fails (e.g., combinations check, DFS, or no available radio), drv_assign_vif_chanctx() is never reached. Since ath12k_mac_vdev_create() is only called from that path, arvif->is_created remains false and arvif->ar remains NULL for the failed link. The subsequent drv_change_sta_links() call reaches ath12k_mac_op_change_sta_links(), which allocates an arsta and sets ahsta->links_map |= BIT(link_id) for the broken link before checking whether the link is ready. When the vdev was never created, only station_add() is skipped, but the link remains in links_map. Any subsequent operation iterating links_map and dereferencing arvif->ar without a NULL check will crash. Two observed examples are NULL deref in ath12k_mac_ml_station_remove() on disconnect and in ath12k_mac_op_set_key() when wpa_supplicant installs PTK keys. BUG: Unable to handle kernel NULL pointer dereference at 0x00000000 pc : ath12k_mac_station_post_remove+0x40/0xe8 [ath12k] Call trace: ath12k_mac_station_post_remove+0x40/0xe8 [ath12k] ath12k_mac_op_sta_state+0xb60/0x1720 [ath12k] drv_sta_state+0x100/0xbd8 [mac80211] __sta_info_destroy_part2+0x148/0x178 [mac80211] ieee80211_set_disassoc+0x500/0x678 [mac80211] BUG: Unable to handle kernel NULL pointer dereference at 0x00000000 pc : ath12k_mac_op_set_key+0x1f8/0x2c0 [ath12k] Call trace: ath12k_mac_op_set_key+0x1f8/0x2c0 [ath12k] drv_set_key+0x70/0x100 [mac80211] ieee80211_key_enable_hw_accel+0x78/0x260 [mac80211] ieee80211_add_key+0x16c/0x2ac [mac80211] nl80211_new_key+0x138/0x280 [cfg80211] Fix this by checking arvif->is_created before calling ath12k_mac_alloc_assign_link_sta(). This prevents the broken link from entering links_map, so all subsequent operations iterating the bitmap are protected. The reliability of arvif->is_created across all error paths is ensured by the preceding patch. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3

References

NVD — CVE-2026-74366 NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-74366

git.kernel.org/stable/c/47809a7c83... WEB

https://git.kernel.org/stable/c/47809a7c8348bc4a332ccc26a37c7145a5f609f8

git.kernel.org/stable/c/5f5be2aa3b... WEB

https://git.kernel.org/stable/c/5f5be2aa3b6d730c51dd4f8b432f2ad72823e63f

git.kernel.org/stable/c/cfcea221db... WEB

https://git.kernel.org/stable/c/cfcea221db933295bf2cd75a7f80d441c7a51e28

Frequently Asked Questions

What is CVE-2026-74366?

CVE-2026-74366 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-2026-74366?

Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.

What CWE is associated with CVE-2026-74366?

CVE-2026-74366 is classified under General Security Weakness.

How can I check Maven dependencies for CVE-2026-74366?

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-j4ff-3xfg-cv3g",
  "modified" : "2026-08-15T06:32:31Z",
  "published" : "2026-08-15T06:32:31Z",
  "aliases" : [ "CVE-2026-74366" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix NULL deref in change_sta_links for unready link\n\n_ieee80211_set_active_links() calls _ieee80211_link_use_channel() for\neach newly-added link and WARN_ON_ONCE()s if it fails. The call uses\nassign_on_failure=true, which allows mac80211 to continue despite\ndriver failures, but when a mac80211-level channel validation fails\n(e.g., combinations check, DFS, or no available radio),\ndrv_assign_vif_chanctx() is never reached. Since ath12k_mac_vdev_create()\nis only called from that path, arvif->is_created remains false and\narvif->ar remains NULL for the failed link.\n\nThe subsequent drv_change_sta_links() call reaches\nath12k_mac_op_change_sta_links(), which allocates an arsta and sets\nahsta->links_map |= BIT(link_id) for the broken link before checking\nwhether the link is ready. When the vdev was never created, only\nstation_add() is skipped, but the link remains in links_map.\n\nAny subsequent operation iterating links_map and dereferencing arvif->ar\nwithout a NULL check will crash. Two observed examples are NULL deref in\nath12k_mac_ml_station_remove() on disconnect and in ath12k_mac_op_set_key()\nwhen wpa_supplicant installs PTK keys.\n\n  BUG: Unable to handle kernel NULL pointer dereference at 0x00000000\n  pc : ath12k_mac_station_post_remove+0x40/0xe8 [ath12k]\n  Call trace:\n   ath12k_mac_station_post_remove+0x40/0xe8 [ath12k]\n   ath12k_mac_op_sta_state+0xb60/0x1720 [ath12k]\n   drv_sta_state+0x100/0xbd8 [mac80211]\n   __sta_info_destroy_part2+0x148/0x178 [mac80211]\n   ieee80211_set_disassoc+0x500/0x678 [mac80211]\n\n  BUG: Unable to handle kernel NULL pointer dereference at 0x00000000\n  pc : ath12k_mac_op_set_key+0x1f8/0x2c0 [ath12k]\n  Call trace:\n   ath12k_mac_op_set_key+0x1f8/0x2c0 [ath12k]\n   drv_set_key+0x70/0x100 [mac80211]\n   ieee80211_key_enable_hw_accel+0x78/0x260 [mac80211]\n   ieee80211_add_key+0x16c/0x2ac [mac80211]\n   nl80211_new_key+0x138/0x280 [cfg80211]\n\nFix this by checking arvif->is_created before calling\nath12k_mac_alloc_assign_link_sta(). This prevents the broken link from\nentering links_map, so all subsequent operations iterating the bitmap\nare protected. The reliability of arvif->is_created across all error\npaths is ensured by the preceding patch.\n\nTested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74366"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/47809a7c8348bc4a332ccc26a37c7145a5f609f8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5f5be2aa3b6d730c51dd4f8b432f2ad72823e63f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cfcea221db933295bf2cd75a7f80d441c7a51e28"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:22:38Z"
  }
}

Advisory Metadata

Source ID: GHSA-j4ff-3xfg-cv3g
Schema Version: 1.4.0
Published: 2026-08-15 06:32
Last Modified: 2026-08-15 06:32
Database Record File: advisories/unreviewed/2026/08/GHSA-j4ff-3xfg-cv3g/GHSA-j4ff-3xfg-cv3g.json