CVE-2026-74659: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-j5v6-9qh5-x594
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Advisory Summary

CVE-2026-74659 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-2026-74659 at a Glance

CVE Identifier CVE-2026-74659
GHSA Identifier GHSA-j5v6-9qh5-x594
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-2026-74659

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-2026-74659, 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: net: bridge: mrp: fix uninitialised bytes on the wire br_mrp_alloc_test_skb() builds MRP test frames on an skb from dev_alloc_skb(), which does not clear the linear data area. On the MRA ring-role branch the sub-option TLV header is appended with sub_tlv = skb_put(skb, sizeof(*sub_tlv)); sub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR; so sub_tlv->length is never written, and the two trailing alignment bytes are appended with a bare skb_put() that does not clear them either. The neighbouring oui and sub_opt regions are explicitly zeroed, so three uninitialised bytes are left in every MRA MRP_Test frame that goes out. Put the sub-option TLV header and the alignment padding in a single skb_put_zero(), which clears both. The AUTO_MGR sub-TLV carries no payload, so the zeroed length field is already the value it should have.

References

NVD — CVE-2026-74659 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74659
git.kernel.org/stable/c/014c062d23... WEB
https://git.kernel.org/stable/c/014c062d23c63ec77ef2cf17a0d9363c7441cc94
git.kernel.org/stable/c/06d58b8d2f... WEB
https://git.kernel.org/stable/c/06d58b8d2f053ced82e01efaeb6e7c82891eed58
git.kernel.org/stable/c/5912cf1822... WEB
https://git.kernel.org/stable/c/5912cf1822fbe53ae275c147868740eb384a5d3e
git.kernel.org/stable/c/63488dba65... WEB
https://git.kernel.org/stable/c/63488dba65ef91373ef616575b32eb0eb21459f4
git.kernel.org/stable/c/7ebc23ff03... WEB
https://git.kernel.org/stable/c/7ebc23ff03668042e0b0e4034bb1518d36198d9e
git.kernel.org/stable/c/a5e385eeb2... WEB
https://git.kernel.org/stable/c/a5e385eeb2d6dbbbdebfa050e67c34734ae12693
git.kernel.org/stable/c/e086652180... WEB
https://git.kernel.org/stable/c/e08665218040f8e312abe40f74543186f3c2c941

Frequently Asked Questions

What is CVE-2026-74659?
CVE-2026-74659 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-2026-74659?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-74659?
CVE-2026-74659 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74659?
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-j5v6-9qh5-x594",
  "modified" : "2026-08-22T18:30:28Z",
  "published" : "2026-08-22T18:30:28Z",
  "aliases" : [ "CVE-2026-74659" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: mrp: fix uninitialised bytes on the wire\n\nbr_mrp_alloc_test_skb() builds MRP test frames on an skb from\ndev_alloc_skb(), which does not clear the linear data area.  On the MRA\nring-role branch the sub-option TLV header is appended with\n\n\tsub_tlv = skb_put(skb, sizeof(*sub_tlv));\n\tsub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR;\n\nso sub_tlv->length is never written, and the two trailing alignment bytes\nare appended with a bare skb_put() that does not clear them either.  The\nneighbouring oui and sub_opt regions are explicitly zeroed, so three\nuninitialised bytes are left in every MRA MRP_Test frame that goes out.\n\nPut the sub-option TLV header and the alignment padding in a single\nskb_put_zero(), which clears both.  The AUTO_MGR sub-TLV carries no\npayload, so the zeroed length field is already the value it should have.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-74659"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/014c062d23c63ec77ef2cf17a0d9363c7441cc94"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/06d58b8d2f053ced82e01efaeb6e7c82891eed58"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5912cf1822fbe53ae275c147868740eb384a5d3e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/63488dba65ef91373ef616575b32eb0eb21459f4"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7ebc23ff03668042e0b0e4034bb1518d36198d9e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a5e385eeb2d6dbbbdebfa050e67c34734ae12693"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e08665218040f8e312abe40f74543186f3c2c941"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-22T16:16:39Z"
  }
}