CVE-2026-43220: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-v974-2cjf-22q5
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CVSS 5.5
Published
Advisory Summary

CVE-2026-43220 is a MODERATE (CVSS 5.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-43220 at a Glance

CVE Identifier CVE-2026-43220
GHSA Identifier GHSA-v974-2cjf-22q5
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification General Security Weakness
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-2026-43220

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-2026-43220, 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: iommu/amd: serialize sequence allocation under concurrent TLB invalidations With concurrent TLB invalidations, completion wait randomly gets timed out because cmd_sem_val was incremented outside the IOMMU spinlock, allowing CMD_COMPL_WAIT commands to be queued out of sequence and breaking the ordering assumption in wait_on_sem(). Move the cmd_sem_val increment under iommu->lock so completion sequence allocation is serialized with command queuing. And remove the unnecessary return.

References

NVD — CVE-2026-43220 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43220
git.kernel.org/stable/c/48caa7542a... WEB
https://git.kernel.org/stable/c/48caa7542a795c9679ec1bd1bc2592e05a7369a4
git.kernel.org/stable/c/5000ce7fcb... WEB
https://git.kernel.org/stable/c/5000ce7fcb31067566a1a1a2e5b5bbff93625242
git.kernel.org/stable/c/9e249c4841... WEB
https://git.kernel.org/stable/c/9e249c48412828e807afddc21527eb734dc9bd3d
git.kernel.org/stable/c/d51bf43193... WEB
https://git.kernel.org/stable/c/d51bf43193b1e95dc4e34e540dc76e19def2ae5a
git.kernel.org/stable/c/fca7aa0264... WEB
https://git.kernel.org/stable/c/fca7aa0264ae99e5ff287d0ced5af0b82b121c4f

Frequently Asked Questions

What is CVE-2026-43220?
CVE-2026-43220 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-2026-43220?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-43220?
CVE-2026-43220 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-2026-43220?
CVE-2026-43220 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-43220?
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-v974-2cjf-22q5",
  "modified" : "2026-05-17T18:30:27Z",
  "published" : "2026-05-06T12:30:33Z",
  "aliases" : [ "CVE-2026-43220" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/amd: serialize sequence allocation under concurrent TLB invalidations\n\nWith concurrent TLB invalidations, completion wait randomly gets timed out\nbecause cmd_sem_val was incremented outside the IOMMU spinlock, allowing\nCMD_COMPL_WAIT commands to be queued out of sequence and breaking the\nordering assumption in wait_on_sem().\nMove the cmd_sem_val increment under iommu->lock so completion sequence\nallocation is serialized with command queuing.\nAnd remove the unnecessary return.",
  "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-2026-43220"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/48caa7542a795c9679ec1bd1bc2592e05a7369a4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5000ce7fcb31067566a1a1a2e5b5bbff93625242"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/9e249c48412828e807afddc21527eb734dc9bd3d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d51bf43193b1e95dc4e34e540dc76e19def2ae5a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fca7aa0264ae99e5ff287d0ced5af0b82b121c4f"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-05-06T12:16:41Z"
  }
}