CVE-2026-72047: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-r4v9-gf4r-42ww
Share
Published
Advisory Summary

CVE-2026-72047 is a security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2026-72047 at a Glance

CVE Identifier CVE-2026-72047
GHSA Identifier GHSA-r4v9-gf4r-42ww
Severity N/A
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-72047

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-2026-72047, 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: ieee802154: ca8210: fix pointer truncation in kfifo on 64-bit ca8210_test_int_driver_write() and ca8210_test_int_user_read() exchange a kmalloc'd buffer pointer through a struct kfifo, but pass a literal '4' as the byte count to kfifo_in()/kfifo_out(). This is correct on 32-bit (pointer = 4 bytes), but on 64-bit only the low 4 bytes of the 8-byte pointer are written into the FIFO. The reader then reads back 4 bytes into an 8-byte local pointer variable, leaving the upper 4 bytes uninitialized stack data. The first dereference of the reconstructed pointer (fifo_buffer[1]) accesses an arbitrary kernel address and generally results in an oops. Use sizeof(fifo_buffer) so the byte count matches pointer width on every architecture. The driver has no architecture restriction in Kconfig, so any 64-bit build with CONFIG_IEEE802154_CA8210_DEBUGFS=y is exposed. Issue has been latent since the driver was added in 2017 because it is most commonly deployed on 32-bit MCUs. Found via a custom Coccinelle semantic patch hunting for short-byte kfifo I/O on byte-mode kfifos used to shuttle pointers.

References

NVD — CVE-2026-72047 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72047
git.kernel.org/stable/c/093aacb0c5... WEB
https://git.kernel.org/stable/c/093aacb0c56d5c693e3169a0224062e77c3fd0c0
git.kernel.org/stable/c/1fe2643d0b... WEB
https://git.kernel.org/stable/c/1fe2643d0b24ca3cdd61a31a45c2d3233dc6cbfe
git.kernel.org/stable/c/2059c28bd7... WEB
https://git.kernel.org/stable/c/2059c28bd725beded01277cdf1f67be33e714323
git.kernel.org/stable/c/2c1664ccfa... WEB
https://git.kernel.org/stable/c/2c1664ccfae653979b38788211240b5a1ee317ed
git.kernel.org/stable/c/65dc342274... WEB
https://git.kernel.org/stable/c/65dc342274a01616f5c17105f7360a3b4bfd7a3d
git.kernel.org/stable/c/6d7f7bcf22... WEB
https://git.kernel.org/stable/c/6d7f7bcf225b2d566176bf6229dbd1252940cb3c
git.kernel.org/stable/c/87dab14a4f... WEB
https://git.kernel.org/stable/c/87dab14a4f68895d6f4d798e6ee3556cd64e8c72
git.kernel.org/stable/c/d8ce67fa6a... WEB
https://git.kernel.org/stable/c/d8ce67fa6a5e6929f5414e933ff9665176c2bce6

Frequently Asked Questions

What is CVE-2026-72047?
CVE-2026-72047 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-2026-72047?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-72047?
CVE-2026-72047 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72047?
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-r4v9-gf4r-42ww",
  "modified" : "2026-08-15T06:32:10Z",
  "published" : "2026-08-15T06:32:10Z",
  "aliases" : [ "CVE-2026-72047" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nieee802154: ca8210: fix pointer truncation in kfifo on 64-bit\n\nca8210_test_int_driver_write() and ca8210_test_int_user_read() exchange\na kmalloc'd buffer pointer through a struct kfifo, but pass a literal\n'4' as the byte count to kfifo_in()/kfifo_out().\n\nThis is correct on 32-bit (pointer = 4 bytes), but on 64-bit only the\nlow 4 bytes of the 8-byte pointer are written into the FIFO. The reader\nthen reads back 4 bytes into an 8-byte local pointer variable, leaving\nthe upper 4 bytes uninitialized stack data. The first dereference of\nthe reconstructed pointer (fifo_buffer[1]) accesses an arbitrary kernel\naddress and generally results in an oops.\n\nUse sizeof(fifo_buffer) so the byte count matches pointer width on every\narchitecture.\n\nThe driver has no architecture restriction in Kconfig, so any 64-bit\nbuild with CONFIG_IEEE802154_CA8210_DEBUGFS=y is exposed. Issue has\nbeen latent since the driver was added in 2017 because it is most\ncommonly deployed on 32-bit MCUs.\n\nFound via a custom Coccinelle semantic patch hunting for short-byte\nkfifo I/O on byte-mode kfifos used to shuttle pointers.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72047"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/093aacb0c56d5c693e3169a0224062e77c3fd0c0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1fe2643d0b24ca3cdd61a31a45c2d3233dc6cbfe"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2059c28bd725beded01277cdf1f67be33e714323"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2c1664ccfae653979b38788211240b5a1ee317ed"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/65dc342274a01616f5c17105f7360a3b4bfd7a3d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/6d7f7bcf225b2d566176bf6229dbd1252940cb3c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/87dab14a4f68895d6f4d798e6ee3556cd64e8c72"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d8ce67fa6a5e6929f5414e933ff9665176c2bce6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:13Z"
  }
}