CVE-2026-72018: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-96mx-hwj9-j649
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CVSS 7.8
CWE-787
Published
Advisory Summary

CVE-2026-72018 is a HIGH (CVSS 7.8) security vulnerability vulnerability (CWE-787: Out-of-bounds Write) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product writes data past the end, or before the beginning, of the intended buffer.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72018 at a Glance

CVE Identifier CVE-2026-72018
GHSA Identifier GHSA-96mx-hwj9-j649
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification CWE-787: Out-of-bounds Write
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.8

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:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-72018

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-2026-72018, 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-787: Out-of-bounds Write, where the product writes data past the end, or before the beginning, of the intended buffer. 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: dibs: loopback: validate offset and size in move_data() The loopback move_data() performs a memcpy into the registered DMB without checking whether offset + size exceeds the DMB length. Unlike real ISM hardware, which enforces memory region bounds natively, the software loopback has no such protection. A peer-supplied out-of-bounds offset or oversized write would result in an OOB write past the allocated kernel buffer. Add an explicit bounds check before the memcpy to reject such requests with -EINVAL.

References

NVD — CVE-2026-72018 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72018
git.kernel.org/stable/c/78237e3c07... WEB
https://git.kernel.org/stable/c/78237e3c0720fcc6eb9b87e90fd70f63eeca886f
git.kernel.org/stable/c/94fe0ab01b... WEB
https://git.kernel.org/stable/c/94fe0ab01b480b52bd8f977edbd845ef375d69fd
git.kernel.org/stable/c/b2f426a9a2... WEB
https://git.kernel.org/stable/c/b2f426a9a22886071966432ede8fceafffe12b8c
git.kernel.org/stable/c/ee188a6b26... WEB
https://git.kernel.org/stable/c/ee188a6b264b71315a67f1b9470faad308b730d2

Frequently Asked Questions

What is CVE-2026-72018?
CVE-2026-72018 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-787: Out-of-bounds Write.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-72018?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-72018?
CVE-2026-72018 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2026-72018?
CVE-2026-72018 is classified under CWE-787: Out-of-bounds Write (The product writes data past the end, or before the beginning, of the intended buffer.).
How can I check Maven dependencies for CVE-2026-72018?
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-96mx-hwj9-j649",
  "modified" : "2026-08-17T06:33:04Z",
  "published" : "2026-08-15T06:32:09Z",
  "aliases" : [ "CVE-2026-72018" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndibs: loopback: validate offset and size in move_data()\n\nThe loopback move_data() performs a memcpy into the registered DMB\nwithout checking whether offset + size exceeds the DMB length.  Unlike\nreal ISM hardware, which enforces memory region bounds natively, the\nsoftware loopback has no such protection.\n\nA peer-supplied out-of-bounds offset or oversized write would result in\nan OOB write past the allocated kernel buffer.  Add an explicit bounds\ncheck before the memcpy to reject such requests with -EINVAL.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72018"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/78237e3c0720fcc6eb9b87e90fd70f63eeca886f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/94fe0ab01b480b52bd8f977edbd845ef375d69fd"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/b2f426a9a22886071966432ede8fceafffe12b8c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/ee188a6b264b71315a67f1b9470faad308b730d2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-787" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:00Z"
  }
}