CVE-2026-74664: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-2jvw-5ch9-j793
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Advisory Summary

CVE-2026-74664 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-2026-74664 at a Glance

CVE Identifier CVE-2026-74664
GHSA Identifier GHSA-2jvw-5ch9-j793
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-2026-74664

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-2026-74664, 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: openvswitch: reallocate update replies for mismatched IDs ovs_flow_cmd_new() preallocates the optional reply skb before it takes ovs_mutex and before it knows which existing flow will be updated. That is normally fine because the skb is sized from the request flow identifier. That identifier also becomes the inserted flow's identifier. For updates, however, a request with a UFID may miss the UFID lookup and then fall back to the flow key lookup. That lookup can legitimately find an existing key-identified flow. UFIDs are optional and the flow key is the primary identifier. For echoed replies, ovs_flow_cmd_fill_info() writes the matched flow's identifier, not the request identifier used for the preallocation. A short request UFID can therefore leave too little room for the key identifier. The fill can then fail with -EMSGSIZE and hit the BUG_ON(error < 0) in the update path. Once the update target has been resolved, reallocate the reply skb if the matched flow needs a larger reply than the request identifier allowed. Do this before replacing the actions so the request can still fail cleanly if the rare extra allocation fails.

References

NVD — CVE-2026-74664 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74664
git.kernel.org/stable/c/00f987f066... WEB
https://git.kernel.org/stable/c/00f987f066e802793a37dd2167459e67cf2cf2ec
git.kernel.org/stable/c/20751193d8... WEB
https://git.kernel.org/stable/c/20751193d83be2e9735d4faee71375691c09cd13
git.kernel.org/stable/c/23716dd9d8... WEB
https://git.kernel.org/stable/c/23716dd9d8d46a5908536b73dc085e62f2b5c237
git.kernel.org/stable/c/5d1c224dd9... WEB
https://git.kernel.org/stable/c/5d1c224dd914579524a183a514c12b95095d12ce
git.kernel.org/stable/c/696a0b9435... WEB
https://git.kernel.org/stable/c/696a0b9435fce9cf4f1e9ba7f6afa6bee96c97fc
git.kernel.org/stable/c/69f40ccf85... WEB
https://git.kernel.org/stable/c/69f40ccf85074981340847d650a9cbf9adabfbbe
git.kernel.org/stable/c/87d0c0040b... WEB
https://git.kernel.org/stable/c/87d0c0040b5d4b61de51ae39132c4c46709f2f77
git.kernel.org/stable/c/bd8ca84d48... WEB
https://git.kernel.org/stable/c/bd8ca84d48cd9a4f6fc63df26512c55e1d339927

Frequently Asked Questions

What is CVE-2026-74664?
CVE-2026-74664 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-2026-74664?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-74664?
CVE-2026-74664 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-74664?
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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  "id" : "GHSA-2jvw-5ch9-j793",
  "modified" : "2026-08-22T18:30:28Z",
  "published" : "2026-08-22T18:30:28Z",
  "aliases" : [ "CVE-2026-74664" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: reallocate update replies for mismatched IDs\n\novs_flow_cmd_new() preallocates the optional reply skb before it takes\novs_mutex and before it knows which existing flow will be updated.\n\nThat is normally fine because the skb is sized from the request flow\nidentifier.  That identifier also becomes the inserted flow's identifier.\nFor updates, however, a request with a UFID may miss the UFID lookup and\nthen fall back to the flow key lookup.  That lookup can legitimately find\nan existing key-identified flow.  UFIDs are optional and the flow key is\nthe primary identifier.\n\nFor echoed replies, ovs_flow_cmd_fill_info() writes the matched flow's\nidentifier, not the request identifier used for the preallocation.  A short\nrequest UFID can therefore leave too little room for the key identifier.\nThe fill can then fail with -EMSGSIZE and hit the BUG_ON(error < 0) in the\nupdate path.\n\nOnce the update target has been resolved, reallocate the reply skb if the\nmatched flow needs a larger reply than the request identifier allowed.  Do\nthis before replacing the actions so the request can still fail cleanly if\nthe rare extra allocation fails.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
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    "url" : "https://git.kernel.org/stable/c/00f987f066e802793a37dd2167459e67cf2cf2ec"
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    "url" : "https://git.kernel.org/stable/c/20751193d83be2e9735d4faee71375691c09cd13"
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-22T16:16:40Z"
  }
}