CVE-2026-53042: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-q56q-rvw2-p4r2
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CVSS 5.5
CWE-824
Published
Advisory Summary

CVE-2026-53042 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-824: Access of Uninitialized Pointer) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product accesses or uses a pointer that has not been initialized.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-53042 at a Glance

CVE Identifier CVE-2026-53042
GHSA Identifier GHSA-q56q-rvw2-p4r2
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-824: Access of Uninitialized Pointer
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-2026-53042

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-2026-53042, 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-824: Access of Uninitialized Pointer, where the product accesses or uses a pointer that has not been initialized. 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: fwctl: Fix class init ordering to avoid NULL pointer dereference on device removal CXL is linked before fwctl in drivers/Makefile. Both use `module_init, so `cxl_pci_driver_init()` runs first. When `cxl_pci_probe()` calls `fwctl_register()` and then `device_add()`, fwctl_class is not yet registered because fwctl_init() hasn't run, causing `class_to_subsys()` to return NULL and skip knode_class initialization. On device removal, `class_to_subsys()` returns non-NULL, and `device_del()` calls `klist_del()` on the uninitialized knode, triggering a NULL pointer dereference.

References

NVD — CVE-2026-53042 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53042
git.kernel.org/stable/c/1075f2f590... WEB
https://git.kernel.org/stable/c/1075f2f590fdac147f8b8010c35b606564b5c7d7
git.kernel.org/stable/c/a28f56988c... WEB
https://git.kernel.org/stable/c/a28f56988c8e5bb9375806a5cfb0bf54d662ae3f
git.kernel.org/stable/c/a55f80233f... WEB
https://git.kernel.org/stable/c/a55f80233f384dc89ef3425b2e1dd0e6d44bcf29

Frequently Asked Questions

What is CVE-2026-53042?
CVE-2026-53042 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-824: Access of Uninitialized Pointer.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-53042?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-53042?
CVE-2026-53042 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-2026-53042?
CVE-2026-53042 is classified under CWE-824: Access of Uninitialized Pointer (The product accesses or uses a pointer that has not been initialized.).
How can I check Maven dependencies for CVE-2026-53042?
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-q56q-rvw2-p4r2",
  "modified" : "2026-07-14T21:31:29Z",
  "published" : "2026-06-24T18:32:44Z",
  "aliases" : [ "CVE-2026-53042" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nfwctl: Fix class init ordering to avoid NULL pointer dereference on device removal\n\nCXL is linked before fwctl in drivers/Makefile. Both use `module_init, so\n`cxl_pci_driver_init()` runs first. When `cxl_pci_probe()` calls\n`fwctl_register()` and then `device_add()`, fwctl_class is not yet\nregistered because fwctl_init() hasn't run, causing `class_to_subsys()` to\nreturn NULL and skip knode_class initialization.\n\nOn device removal, `class_to_subsys()` returns non-NULL, and\n`device_del()` calls `klist_del()` on the uninitialized knode, triggering\na NULL pointer dereference.",
  "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-2026-53042"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1075f2f590fdac147f8b8010c35b606564b5c7d7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a28f56988c8e5bb9375806a5cfb0bf54d662ae3f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a55f80233f384dc89ef3425b2e1dd0e6d44bcf29"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-824" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-06-24T17:17:15Z"
  }
}