CVE-2026-64347: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-f6gg-fr3w-rqh2
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CVSS 5.5
CWE-667
Published
Advisory Summary

CVE-2026-64347 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-667: Improper Locking) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-64347 at a Glance

CVE Identifier CVE-2026-64347
GHSA Identifier GHSA-f6gg-fr3w-rqh2
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-667: Improper Locking
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.5

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:N/I:N/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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2026-64347

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-2026-64347, 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-667: Improper Locking, where the product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors. 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: usb: gadget: composite: fix dead empty check in the USB_DT_OTG handler The OTG branch of composite_setup() falls back to the first configuration when none is selected: if (cdev->config) config = cdev->config; else config = list_first_entry(&cdev->configs, struct usb_configuration, list); if (!config) goto done; ... memcpy(req->buf, config->descriptors[0], value); list_first_entry() never returns NULL. On an empty list it returns container_of() of the list head. So the "if (!config)" check is dead. When cdev->configs is empty, config points at the head inside struct usb_composite_dev. config->descriptors[0] reads whatever sits at that offset. The memcpy copies up to w_length bytes of it into the response buffer. cdev->configs can be empty in two cases. One is a teardown race on gadget unbind with a control transfer in flight. The other is a driver that sets is_otg before it adds a config. A reproducer that holds cdev->configs empty triggers a KASAN fault in this branch. Use list_first_entry_or_null() so the existing check does its job.

References

NVD — CVE-2026-64347 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-64347
git.kernel.org/stable/c/01feaf024f... WEB
https://git.kernel.org/stable/c/01feaf024f29618d5ffa7ab0fd858e0579dcbf7b
git.kernel.org/stable/c/2454264b2a... WEB
https://git.kernel.org/stable/c/2454264b2ab4cf0055c0bfd39e79f830452bd0db
git.kernel.org/stable/c/56add2b9b2... WEB
https://git.kernel.org/stable/c/56add2b9b2e89ec61c0761165d758f73004fdfdf
git.kernel.org/stable/c/8ac463fe6c... WEB
https://git.kernel.org/stable/c/8ac463fe6c0f85bdb1ce8c30e8c9e060802e4483
git.kernel.org/stable/c/91b3ecd34b... WEB
https://git.kernel.org/stable/c/91b3ecd34b60f950c50c560974945b6596a6f207
git.kernel.org/stable/c/d3e72cfef2... WEB
https://git.kernel.org/stable/c/d3e72cfef2e38bd588055739a8100d14f9773b17
git.kernel.org/stable/c/f8f680609c... WEB
https://git.kernel.org/stable/c/f8f680609c2b3ab795ffcd6f21585b6dfc46d395
git.kernel.org/stable/c/fcb21bf747... WEB
https://git.kernel.org/stable/c/fcb21bf747640c9d6bd1eda9da85420f076d59c1

Frequently Asked Questions

What is CVE-2026-64347?
CVE-2026-64347 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-667: Improper Locking.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-64347?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-64347?
CVE-2026-64347 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2026-64347?
CVE-2026-64347 is classified under CWE-667: Improper Locking (The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.).
How can I check Maven dependencies for CVE-2026-64347?
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-f6gg-fr3w-rqh2",
  "modified" : "2026-09-03T18:31:17Z",
  "published" : "2026-07-25T12:31:32Z",
  "aliases" : [ "CVE-2026-64347" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: composite: fix dead empty check in the USB_DT_OTG handler\n\nThe OTG branch of composite_setup() falls back to the first\nconfiguration when none is selected:\n\n\tif (cdev->config)\n\t\tconfig = cdev->config;\n\telse\n\t\tconfig = list_first_entry(&cdev->configs,\n\t\t\t\t\t  struct usb_configuration, list);\n\tif (!config)\n\t\tgoto done;\n\t...\n\tmemcpy(req->buf, config->descriptors[0], value);\n\nlist_first_entry() never returns NULL. On an empty list it returns\ncontainer_of() of the list head. So the \"if (!config)\" check is dead.\n\nWhen cdev->configs is empty, config points at the head inside struct\nusb_composite_dev. config->descriptors[0] reads whatever sits at that\noffset. The memcpy copies up to w_length bytes of it into the response\nbuffer.\n\ncdev->configs can be empty in two cases. One is a teardown race on\ngadget unbind with a control transfer in flight. The other is a driver\nthat sets is_otg before it adds a config. A reproducer that holds\ncdev->configs empty triggers a KASAN fault in this branch.\n\nUse list_first_entry_or_null() so the existing check does its job.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-64347"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/01feaf024f29618d5ffa7ab0fd858e0579dcbf7b"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2454264b2ab4cf0055c0bfd39e79f830452bd0db"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/56add2b9b2e89ec61c0761165d758f73004fdfdf"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8ac463fe6c0f85bdb1ce8c30e8c9e060802e4483"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/91b3ecd34b60f950c50c560974945b6596a6f207"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d3e72cfef2e38bd588055739a8100d14f9773b17"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f8f680609c2b3ab795ffcd6f21585b6dfc46d395"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fcb21bf747640c9d6bd1eda9da85420f076d59c1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-667" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-25T10:17:16Z"
  }
}