CVE-2026-43473: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-4rpc-8842-rq53
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CVSS 5.5
CWE-476
Published
Advisory Summary

CVE-2026-43473 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (CWE-476: NULL Pointer Dereference) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product dereferences a pointer that it expects to be valid but is null.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-43473 at a Glance

CVE Identifier CVE-2026-43473
GHSA Identifier GHSA-4rpc-8842-rq53
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-476: NULL Pointer Dereference
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-2026-43473

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-2026-43473, 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-476: NULL Pointer Dereference, where the product dereferences a pointer that it expects to be valid but is null. 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: scsi: mpi3mr: Add NULL checks when resetting request and reply queues The driver encountered a crash during resource cleanup when the reply and request queues were NULL due to freed memory. This issue occurred when the creation of reply or request queues failed, and the driver freed the memory first, but attempted to mem set the content of the freed memory, leading to a system crash. Add NULL pointer checks for reply and request queues before accessing the reply/request memory during cleanup

References

NVD — CVE-2026-43473 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43473
git.kernel.org/stable/c/220d7ca706... WEB
https://git.kernel.org/stable/c/220d7ca70611a73d50ef8e9edac630ed1ececb7c
git.kernel.org/stable/c/78d3f201f8... WEB
https://git.kernel.org/stable/c/78d3f201f8b609928eade53cf03a52df5415aaf7
git.kernel.org/stable/c/7da755e0d0... WEB
https://git.kernel.org/stable/c/7da755e0d02e9ca035065127e108d1fed8950dc8
git.kernel.org/stable/c/7df0296ad4... WEB
https://git.kernel.org/stable/c/7df0296ad4e9253d12c6dbe7f120044dddc95600
git.kernel.org/stable/c/e978a36f33... WEB
https://git.kernel.org/stable/c/e978a36f332ede78eb4de037b517db16265d420d
git.kernel.org/stable/c/f8e833572a... WEB
https://git.kernel.org/stable/c/f8e833572a3e12a2a1ffe7b3646af024264d38ca
git.kernel.org/stable/c/fa96392ebe... WEB
https://git.kernel.org/stable/c/fa96392ebebc8fade2b878acb14cce0f71016503

Frequently Asked Questions

What is CVE-2026-43473?
CVE-2026-43473 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-476: NULL Pointer Dereference.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-43473?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-43473?
CVE-2026-43473 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-2026-43473?
CVE-2026-43473 is classified under CWE-476: NULL Pointer Dereference (The product dereferences a pointer that it expects to be valid but is NULL.).
How can I check Maven dependencies for CVE-2026-43473?
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-4rpc-8842-rq53",
  "modified" : "2026-05-21T15:34:02Z",
  "published" : "2026-05-08T15:31:30Z",
  "aliases" : [ "CVE-2026-43473" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: mpi3mr: Add NULL checks when resetting request and reply queues\n\nThe driver encountered a crash during resource cleanup when the reply and\nrequest queues were NULL due to freed memory.  This issue occurred when the\ncreation of reply or request queues failed, and the driver freed the memory\nfirst, but attempted to mem set the content of the freed memory, leading to\na system crash.\n\nAdd NULL pointer checks for reply and request queues before accessing the\nreply/request memory during cleanup",
  "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-2026-43473"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/220d7ca70611a73d50ef8e9edac630ed1ececb7c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/78d3f201f8b609928eade53cf03a52df5415aaf7"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7da755e0d02e9ca035065127e108d1fed8950dc8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7df0296ad4e9253d12c6dbe7f120044dddc95600"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e978a36f332ede78eb4de037b517db16265d420d"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f8e833572a3e12a2a1ffe7b3646af024264d38ca"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fa96392ebebc8fade2b878acb14cce0f71016503"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-476" ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-08T15:17:00Z"
  }
}