CVE-2026-72412: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-94jh-p9fj-qxf8
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CVSS 9.3
Published
Advisory Summary

CVE-2026-72412 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-2026-72412 at a Glance

CVE Identifier CVE-2026-72412
GHSA Identifier GHSA-94jh-p9fj-qxf8
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-2026-72412

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-2026-72412, 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: s390/mm: Fix handling of _PAGE_UNUSED pte bit The _PAGE_UNUSED softbit should not really be lying around. Its sole purpose is to signal to try_to_unmap_one() and try_to_migrate_one() that the page can be discarded instead of being moved / swapped. KVM has no way to know why a page is being unmapped, so it sets the bit on userspace ptes corresponding to unused guest pages every time they get unmapped. KVM has no reasonable way to clear the bit once the page is in use again. While set_ptes() checks and clears the bit, other paths that set new ptes did not. This led to used pages being thrown out as if they were unused, causing guest corruption. Fix the issue by clearing the _PAGE_UNUSED bit for present ptes in set_pte(), i.e. whenever a present pte is getting set. The check in set_ptes() is then redundant and can be removed. Also fix gmap_helper_try_set_pte_unused() to only set the bit if the pte is present; the _PAGE_UNUSED bit is only defined for present ptes and thus should not be set for non-present ptes.

References

NVD — CVE-2026-72412 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72412
git.kernel.org/stable/c/d4bb00704a... WEB
https://git.kernel.org/stable/c/d4bb00704a66024502261fa7a523c07420249fea
git.kernel.org/stable/c/fda07c8e4b... WEB
https://git.kernel.org/stable/c/fda07c8e4b54b9105f1ca73f0adea7b244d405f4

Frequently Asked Questions

What is CVE-2026-72412?
CVE-2026-72412 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-2026-72412?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72412?
CVE-2026-72412 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-2026-72412?
CVE-2026-72412 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72412?
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-94jh-p9fj-qxf8",
  "modified" : "2026-08-17T06:33:28Z",
  "published" : "2026-08-15T06:32:23Z",
  "aliases" : [ "CVE-2026-72412" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/mm: Fix handling of _PAGE_UNUSED pte bit\n\nThe _PAGE_UNUSED softbit should not really be lying around. Its sole\npurpose is to signal to try_to_unmap_one() and try_to_migrate_one()\nthat the page can be discarded instead of being moved / swapped.\n\nKVM has no way to know why a page is being unmapped, so it sets the bit\non userspace ptes corresponding to unused guest pages every time they\nget unmapped. KVM has no reasonable way to clear the bit once the page\nis in use again.\n\nWhile set_ptes() checks and clears the bit, other paths that set new\nptes did not. This led to used pages being thrown out as if they were\nunused, causing guest corruption.\n\nFix the issue by clearing the _PAGE_UNUSED bit for present ptes in\nset_pte(), i.e. whenever a present pte is getting set. The check in\nset_ptes() is then redundant and can be removed.\n\nAlso fix gmap_helper_try_set_pte_unused() to only set the bit if the\npte is present; the _PAGE_UNUSED bit is only defined for present ptes\nand thus should not be set for non-present ptes.",
  "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-2026-72412"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d4bb00704a66024502261fa7a523c07420249fea"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fda07c8e4b54b9105f1ca73f0adea7b244d405f4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:22:14Z"
  }
}