CVE-2026-46047: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-g5x6-jrf2-h8qv
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CVSS 7.8
CWE-416
Published
Advisory Summary

CVE-2026-46047 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-416: Use After Free) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-46047 at a Glance

CVE Identifier CVE-2026-46047
GHSA Identifier GHSA-g5x6-jrf2-h8qv
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-416: Use After Free
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-2026-46047

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-2026-46047, 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-416: Use After Free, where the product reuses or references memory after it has been freed. at some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. 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: qrtr: ns: Fix use-after-free in driver remove() In the remove callback, if a packet arrives after destroy_workqueue() is called, but before sock_release(), the qrtr_ns_data_ready() callback will try to queue the work, causing use-after-free issue. Fix this issue by saving the default 'sk_data_ready' callback during qrtr_ns_init() and use it to replace the qrtr_ns_data_ready() callback at the start of remove(). This ensures that even if a packet arrives after destroy_workqueue(), the work struct will not be dereferenced. Note that it is also required to ensure that the RX threads are completed before destroying the workqueue, because the threads could be using the qrtr_ns_data_ready() callback.

References

NVD — CVE-2026-46047 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46047
cert-portal.siemens.com/productcert/html/ss... WEB
https://cert-portal.siemens.com/productcert/html/ssa-784472.html
git.kernel.org/stable/c/0f313eb6a8... WEB
https://git.kernel.org/stable/c/0f313eb6a8f6dffa491373cf3afab979fa1c02f4
git.kernel.org/stable/c/2e127ceb1c... WEB
https://git.kernel.org/stable/c/2e127ceb1c415e246076d8e09e23e443a7a2038f
git.kernel.org/stable/c/4ae0bd51bf... WEB
https://git.kernel.org/stable/c/4ae0bd51bf7079e9c2a06b5de0ae04ba70d10167
git.kernel.org/stable/c/65168712c2... WEB
https://git.kernel.org/stable/c/65168712c216584ff482a7d1a67589f2079b2634
git.kernel.org/stable/c/7809fea20c... WEB
https://git.kernel.org/stable/c/7809fea20c9404bfcfa6112ec08d1fe1d3520beb
git.kernel.org/stable/c/db3c60ec77... WEB
https://git.kernel.org/stable/c/db3c60ec772de30acae92d560dfcc5258e58dbe8
git.kernel.org/stable/c/dff081c360... WEB
https://git.kernel.org/stable/c/dff081c3602f2fd810f69ef47945a226980dd05d
git.kernel.org/stable/c/f96779e916... WEB
https://git.kernel.org/stable/c/f96779e916576e81430ebb326baff6e433fef8ae

Frequently Asked Questions

What is CVE-2026-46047?
CVE-2026-46047 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-416: Use After Free.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-46047?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-46047?
CVE-2026-46047 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-2026-46047?
CVE-2026-46047 is classified under CWE-416: Use After Free (The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.).
How can I check Maven dependencies for CVE-2026-46047?
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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  "published" : "2026-05-27T15:33:22Z",
  "aliases" : [ "CVE-2026-46047" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qrtr: ns: Fix use-after-free in driver remove()\n\nIn the remove callback, if a packet arrives after destroy_workqueue() is\ncalled, but before sock_release(), the qrtr_ns_data_ready() callback will\ntry to queue the work, causing use-after-free issue.\n\nFix this issue by saving the default 'sk_data_ready' callback during\nqrtr_ns_init() and use it to replace the qrtr_ns_data_ready() callback at\nthe start of remove(). This ensures that even if a packet arrives after\ndestroy_workqueue(), the work struct will not be dereferenced.\n\nNote that it is also required to ensure that the RX threads are completed\nbefore destroying the workqueue, because the threads could be using the\nqrtr_ns_data_ready() callback.",
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    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-27T14:17:24Z"
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