CVE-2026-72239: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-mh7r-v762-68jw
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CVSS 9.3
Published
Advisory Summary

CVE-2026-72239 is a CRITICAL (CVSS 9.3) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72239 at a Glance

CVE Identifier CVE-2026-72239
GHSA Identifier GHSA-mh7r-v762-68jw
Severity CRITICAL
CVSS v3.1 Base Score 9.3
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-72239

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-2026-72239, 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: x86/virt/sev: Revert "Drop WBINVD before setting MSR_AMD64_SYSCFG_SNP_EN" Revert 99cf1fb58e68 ("x86/virt/sev: Drop WBINVD before setting MSR_AMD64_SYSCFG_SNP_EN"). Section 8.8 of the SNP spec says: Before invoking SNP_INIT_EX with INIT_RMP set to 1, software must ensure that no CPUs contain dirty cache lines for the memory containing the RMP. Cachelines can be moved from cache to cache in a dirty state. The wbinvd_on_all_cpus() before SNP_INIT_EX flushes the caches for each CPU, but if the IPIs for WBINVD race with this dirty cacheline movement, it is possible that they may not get flushed, violating the firmware requirement. Doing wbinvd_on_all_cpus() before setting SNPEn is safer since the RMP table is not yet in use. [ Heroically bisected by Srikanth. ] [ bp: Massage commit message. ]

References

NVD — CVE-2026-72239 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72239
git.kernel.org/stable/c/4c2509f3b7... WEB
https://git.kernel.org/stable/c/4c2509f3b79756679a02bea649c6a7501b58f52c
git.kernel.org/stable/c/e5158ff53f... WEB
https://git.kernel.org/stable/c/e5158ff53fdff9c229bf13aa5f75eb17cdcfcd2d

Frequently Asked Questions

What is CVE-2026-72239?
CVE-2026-72239 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-2026-72239?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72239?
CVE-2026-72239 has a CVSS v3.1 base score of 9.3 (CRITICAL) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-72239?
CVE-2026-72239 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72239?
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-mh7r-v762-68jw",
  "modified" : "2026-08-17T06:33:18Z",
  "published" : "2026-08-15T06:32:16Z",
  "aliases" : [ "CVE-2026-72239" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/virt/sev: Revert \"Drop WBINVD before setting MSR_AMD64_SYSCFG_SNP_EN\"\n\nRevert\n\n  99cf1fb58e68 (\"x86/virt/sev: Drop WBINVD before setting MSR_AMD64_SYSCFG_SNP_EN\").\n\nSection 8.8 of the SNP spec says:\n\n  Before invoking SNP_INIT_EX with INIT_RMP set to 1, software must ensure\n  that no CPUs contain dirty cache lines for the memory containing the RMP.\n\nCachelines can be moved from cache to cache in a dirty state. The\nwbinvd_on_all_cpus() before SNP_INIT_EX flushes the caches for each CPU, but\nif the IPIs for WBINVD race with this dirty cacheline movement, it is possible\nthat they may not get flushed, violating the firmware requirement.\n\nDoing wbinvd_on_all_cpus() before setting SNPEn is safer since the RMP\ntable is not yet in use.\n\n  [ Heroically bisected by Srikanth. ]\n  [ bp: Massage commit message. ]",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72239"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/4c2509f3b79756679a02bea649c6a7501b58f52c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e5158ff53fdff9c229bf13aa5f75eb17cdcfcd2d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:50Z"
  }
}