CVE-2026-72127: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-hx9w-mw8p-76q2
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Advisory Summary

CVE-2026-72127 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-2026-72127 at a Glance

CVE Identifier CVE-2026-72127
GHSA Identifier GHSA-hx9w-mw8p-76q2
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-2026-72127

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-2026-72127, 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: netdev-genl: report NAPI thread PID in the caller's pid namespace netdev_nl_napi_fill_one() reports the NAPI kthread PID in NETDEV_A_NAPI_PID using task_pid_nr(), which returns the PID in the initial pid namespace. NETDEV_CMD_NAPI_GET does not have GENL_ADMIN_PERM and the netdev genl family is netnsok, so a caller in a child pid namespace can issue it. That caller then sees the kthread's global PID, even though the kthread is not visible in its pid namespace, where the value should be 0. Translate the PID through the caller's pid namespace, the same way commit 3799c2570982 ("io_uring/fdinfo: translate SqThread PID through caller's pid_ns") did for the io_uring SQPOLL thread. The doit and dumpit paths both run synchronously in the caller's context, so task_active_pid_ns(current) is the caller's pid namespace.

References

NVD — CVE-2026-72127 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72127
git.kernel.org/stable/c/1f24c0d01d... WEB
https://git.kernel.org/stable/c/1f24c0d01db214c9e661915e9972404c96ca73c0
git.kernel.org/stable/c/5e4c8e08ce... WEB
https://git.kernel.org/stable/c/5e4c8e08ce95730c87d6ada0bdbe1131a3c06393
git.kernel.org/stable/c/fb18095389... WEB
https://git.kernel.org/stable/c/fb18095389fe81f140d39585a2624aca9d42227e
git.kernel.org/stable/c/fd750b694f... WEB
https://git.kernel.org/stable/c/fd750b694f1f9e1ecb8ca19314e4e21edbb15f42

Frequently Asked Questions

What is CVE-2026-72127?
CVE-2026-72127 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-2026-72127?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-72127?
CVE-2026-72127 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72127?
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 
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  "schema_version" : "1.4.0",
  "id" : "GHSA-hx9w-mw8p-76q2",
  "modified" : "2026-08-15T06:32:13Z",
  "published" : "2026-08-15T06:32:13Z",
  "aliases" : [ "CVE-2026-72127" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdev-genl: report NAPI thread PID in the caller's pid namespace\n\nnetdev_nl_napi_fill_one() reports the NAPI kthread PID in NETDEV_A_NAPI_PID\nusing task_pid_nr(), which returns the PID in the initial pid namespace.\n\nNETDEV_CMD_NAPI_GET does not have GENL_ADMIN_PERM and the netdev genl family\nis netnsok, so a caller in a child pid namespace can issue it. That caller\nthen sees the kthread's global PID, even though the kthread is not visible\nin its pid namespace, where the value should be 0.\n\nTranslate the PID through the caller's pid namespace, the same way commit\n3799c2570982 (\"io_uring/fdinfo: translate SqThread PID through caller's\npid_ns\") did for the io_uring SQPOLL thread. The doit and dumpit paths both\nrun synchronously in the caller's context, so task_active_pid_ns(current) is\nthe caller's pid namespace.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72127"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1f24c0d01db214c9e661915e9972404c96ca73c0"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/5e4c8e08ce95730c87d6ada0bdbe1131a3c06393"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fb18095389fe81f140d39585a2624aca9d42227e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/fd750b694f1f9e1ecb8ca19314e4e21edbb15f42"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:21:30Z"
  }
}