CVE-2026-68402: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-755j-4fg9-vf62
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CVSS 7.1
CWE-125
Published
Advisory Summary

CVE-2026-68402 is a HIGH (CVSS 7.1) security vulnerability vulnerability (CWE-125: Out-of-bounds Read) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reads data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-68402 at a Glance

CVE Identifier CVE-2026-68402
GHSA Identifier GHSA-755j-4fg9-vf62
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-125: Out-of-bounds Read
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.1

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H).

Attack Vector Adjacent (AV:A)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-68402

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-2026-68402, 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 CWE-125: Out-of-bounds Read, where the product reads data past the end, or before the beginning, of the intended buffer. 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: bound element ID read when checking non-inheritance cfg80211_is_element_inherited() reads the first data octet of the candidate element (id = elem->data[0]) to look it up in an extension non-inheritance list. It does so after testing elem->id, but without verifying that the element actually has a data octet. A zero-length extension element (WLAN_EID_EXTENSION with length 0) therefore makes it read one octet past the end of the element. _ieee802_11_parse_elems_full() runs this check for every element of a frame once a non-inheritance context exists -- e.g. while parsing a per-STA profile of a Multi-Link element in a (re)association response, or a non-transmitted BSS profile -- so a crafted frame from an AP can trigger a one-octet slab-out-of-bounds read during element parsing: BUG: KASAN: slab-out-of-bounds in cfg80211_is_element_inherited Read of size 1 ... in net/wireless/scan.c Return early (treat the element as inherited) when an extension element carries no data, mirroring the existing handling of empty ID lists. The bug was found by fuzzing ieee802_11_parse_elems_full() under KASAN.

References

NVD — CVE-2026-68402 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-68402
git.kernel.org/stable/c/11ac7a5e75... WEB
https://git.kernel.org/stable/c/11ac7a5e75f5132f1778e0c60981d30dc29fb869
git.kernel.org/stable/c/20c308d9a5... WEB
https://git.kernel.org/stable/c/20c308d9a57722801961f816395bf825f7bde6bc
git.kernel.org/stable/c/24154c1722... WEB
https://git.kernel.org/stable/c/24154c172246ae3f0e69bb17c9111095685ceedc
git.kernel.org/stable/c/2d31ebb26a... WEB
https://git.kernel.org/stable/c/2d31ebb26a14f103c9cdc5287fb20cb2d4bde901
git.kernel.org/stable/c/521dd5fe6d... WEB
https://git.kernel.org/stable/c/521dd5fe6d12b0d3c275f919738dc3a07117f4a5
git.kernel.org/stable/c/84bd907361... WEB
https://git.kernel.org/stable/c/84bd907361c56fbd5523eceb2682cb39da059bd5
git.kernel.org/stable/c/cb8afea465... WEB
https://git.kernel.org/stable/c/cb8afea4655ff004fa7feee825d5c79783525383
git.kernel.org/stable/c/ddf2773bcc... WEB
https://git.kernel.org/stable/c/ddf2773bcc8e49a43c561f22ec1e7924215d7947

Frequently Asked Questions

What is CVE-2026-68402?
CVE-2026-68402 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-125: Out-of-bounds Read.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-68402?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-68402?
CVE-2026-68402 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.
What CWE is associated with CVE-2026-68402?
CVE-2026-68402 is classified under CWE-125: Out-of-bounds Read (The product reads data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-68402?
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-755j-4fg9-vf62",
  "modified" : "2026-08-19T18:32:18Z",
  "published" : "2026-08-10T15:33:50Z",
  "aliases" : [ "CVE-2026-68402" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: bound element ID read when checking non-inheritance\n\ncfg80211_is_element_inherited() reads the first data octet of the\ncandidate element (id = elem->data[0]) to look it up in an extension\nnon-inheritance list. It does so after testing elem->id, but without\nverifying that the element actually has a data octet. A zero-length\nextension element (WLAN_EID_EXTENSION with length 0) therefore makes it\nread one octet past the end of the element.\n\n_ieee802_11_parse_elems_full() runs this check for every element of a\nframe once a non-inheritance context exists -- e.g. while parsing a\nper-STA profile of a Multi-Link element in a (re)association response,\nor a non-transmitted BSS profile -- so a crafted frame from an AP can\ntrigger a one-octet slab-out-of-bounds read during element parsing:\n\n  BUG: KASAN: slab-out-of-bounds in cfg80211_is_element_inherited\n  Read of size 1 ... in net/wireless/scan.c\n\nReturn early (treat the element as inherited) when an extension element\ncarries no data, mirroring the existing handling of empty ID lists.\n\nThe bug was found by fuzzing ieee802_11_parse_elems_full() under KASAN.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-68402"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/11ac7a5e75f5132f1778e0c60981d30dc29fb869"
  }, {
    "type" : "WEB",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/24154c172246ae3f0e69bb17c9111095685ceedc"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2d31ebb26a14f103c9cdc5287fb20cb2d4bde901"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/521dd5fe6d12b0d3c275f919738dc3a07117f4a5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/84bd907361c56fbd5523eceb2682cb39da059bd5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cb8afea4655ff004fa7feee825d5c79783525383"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ddf2773bcc8e49a43c561f22ec1e7924215d7947"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-125" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-10T13:20:33Z"
  }
}