CVE-2026-74262: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-rv7w-h679-g92g
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CVSS 7.8
Published
Advisory Summary

CVE-2026-74262 is a HIGH (CVSS 7.8) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-74262 at a Glance

CVE Identifier CVE-2026-74262
GHSA Identifier GHSA-rv7w-h679-g92g
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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

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

How to Fix CVE-2026-74262

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-2026-74262, 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: kcm: use WRITE_ONCE() when changing lower socket callbacks kcm_attach() replaces a live lower TCP socket's sk_data_ready and sk_write_space callbacks with KCM handlers, and kcm_unattach() restores them later. Those callback-pointer updates are still plain stores even though the same fields can be read and invoked concurrently on other CPUs. If another CPU observes an older callback snapshot after the live field has already been restored, callback execution can run with a mismatched target and sk_user_data state, leading to stale or misdirected wakeups. Use WRITE_ONCE() for the callback replacement and restore operations so these shared callback fields follow the same visibility contract already established by the earlier 4022 fixes.

References

NVD — CVE-2026-74262 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74262
git.kernel.org/stable/c/0cb3e2f406... WEB
https://git.kernel.org/stable/c/0cb3e2f40679032c1aa2186280a86e5ead0161ee
git.kernel.org/stable/c/11faefd11c... WEB
https://git.kernel.org/stable/c/11faefd11ce2448bac7279ab302dd1954a6547fe
git.kernel.org/stable/c/47186409c0... WEB
https://git.kernel.org/stable/c/47186409c092cd7dd70350999186c700233e854d
git.kernel.org/stable/c/9684fff871... WEB
https://git.kernel.org/stable/c/9684fff87124b201e11dea01ded9173025359a0f
git.kernel.org/stable/c/b4ccd6eef6... WEB
https://git.kernel.org/stable/c/b4ccd6eef671d7c44a30123cd29f3acf3de8468e
git.kernel.org/stable/c/b8c90823cd... WEB
https://git.kernel.org/stable/c/b8c90823cdfb5f3d22f261aeb3e9066612853c36
git.kernel.org/stable/c/f01fb6138f... WEB
https://git.kernel.org/stable/c/f01fb6138f8eb606b56ce9158e2d8b72352c53f4
git.kernel.org/stable/c/fa26e4606a... WEB
https://git.kernel.org/stable/c/fa26e4606aed0f7fe793c325506adeda1d847a43

Frequently Asked Questions

What is CVE-2026-74262?
CVE-2026-74262 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-2026-74262?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-74262?
CVE-2026-74262 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-74262?
CVE-2026-74262 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74262?
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 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-rv7w-h679-g92g",
  "modified" : "2026-08-17T06:33:34Z",
  "published" : "2026-08-15T06:32:27Z",
  "aliases" : [ "CVE-2026-74262" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nkcm: use WRITE_ONCE() when changing lower socket callbacks\n\nkcm_attach() replaces a live lower TCP socket's sk_data_ready and\nsk_write_space callbacks with KCM handlers, and kcm_unattach() restores\nthem later. Those callback-pointer updates are still plain stores even\nthough the same fields can be read and invoked concurrently on other\nCPUs.\n\nIf another CPU observes an older callback snapshot after the live field\nhas already been restored, callback execution can run with a mismatched\ntarget and sk_user_data state, leading to stale or misdirected wakeups.\n\nUse WRITE_ONCE() for the callback replacement and restore operations so\nthese shared callback fields follow the same visibility contract already\nestablished by the earlier 4022 fixes.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0cb3e2f40679032c1aa2186280a86e5ead0161ee"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/11faefd11ce2448bac7279ab302dd1954a6547fe"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/47186409c092cd7dd70350999186c700233e854d"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fa26e4606aed0f7fe793c325506adeda1d847a43"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:22:25Z"
  }
}