CVE-2026-72391: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-j3vv-g378-r9j2
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Advisory Summary

CVE-2026-72391 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-2026-72391 at a Glance

CVE Identifier CVE-2026-72391
GHSA Identifier GHSA-j3vv-g378-r9j2
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-2026-72391

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-2026-72391, 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: net: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy sfp_i2c_mdiobus_create() allocates the I2C MDIO bus with mdio_i2c_alloc(), a plain (non-devm) allocation, and registers it. sfp_i2c_mdiobus_destroy() only unregisters the bus and clears sfp->i2c_mii without calling mdiobus_free(). As the only reference to the bus is then cleared, the struct mii_bus is leaked. This is hit whenever a copper/RollBall SFP module that instantiated an MDIO bus is removed: sfp_sm_main() takes the global teardown path and calls sfp_i2c_mdiobus_destroy(). sfp_cleanup(), on driver unbind, frees sfp->i2c_mii directly, which is why the leak only triggered on module hot-removal and not on unbind. Free the bus in sfp_i2c_mdiobus_destroy() to match the allocation done in sfp_i2c_mdiobus_create().

References

NVD — CVE-2026-72391 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72391
git.kernel.org/stable/c/2381bf3f48... WEB
https://git.kernel.org/stable/c/2381bf3f484e8e4fd89a225445872ec14e036ab5
git.kernel.org/stable/c/3183b6f551... WEB
https://git.kernel.org/stable/c/3183b6f5510c876a1c4b4a6bdc3d0ad8940fe742
git.kernel.org/stable/c/86d379fcf1... WEB
https://git.kernel.org/stable/c/86d379fcf1b79bdf4bc2ac891297f30f63d041d8
git.kernel.org/stable/c/8f31efff92... WEB
https://git.kernel.org/stable/c/8f31efff9206f9f0adb853cad6916086aac4d5ef
git.kernel.org/stable/c/92dd9a522f... WEB
https://git.kernel.org/stable/c/92dd9a522f01ef57f633a8c1953cf6d48ef2bcd5
git.kernel.org/stable/c/d2c37f26d1... WEB
https://git.kernel.org/stable/c/d2c37f26d1a37f8177be5f354537f8ee3ec31cc2

Frequently Asked Questions

What is CVE-2026-72391?
CVE-2026-72391 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-2026-72391?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-72391?
CVE-2026-72391 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-72391?
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-j3vv-g378-r9j2",
  "modified" : "2026-08-15T06:32:22Z",
  "published" : "2026-08-15T06:32:22Z",
  "aliases" : [ "CVE-2026-72391" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: sfp: free mii_bus in sfp_i2c_mdiobus_destroy\n\nsfp_i2c_mdiobus_create() allocates the I2C MDIO bus with mdio_i2c_alloc(),\na plain (non-devm) allocation, and registers it. sfp_i2c_mdiobus_destroy()\nonly unregisters the bus and clears sfp->i2c_mii without calling\nmdiobus_free(). As the only reference to the bus is then cleared, the\nstruct mii_bus is leaked.\n\nThis is hit whenever a copper/RollBall SFP module that instantiated an MDIO\nbus is removed: sfp_sm_main() takes the global teardown path and calls\nsfp_i2c_mdiobus_destroy(). sfp_cleanup(), on driver unbind, frees\nsfp->i2c_mii directly, which is why the leak only triggered on module\nhot-removal and not on unbind.\n\nFree the bus in sfp_i2c_mdiobus_destroy() to match the allocation done in\nsfp_i2c_mdiobus_create().",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-72391"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/2381bf3f484e8e4fd89a225445872ec14e036ab5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3183b6f5510c876a1c4b4a6bdc3d0ad8940fe742"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/86d379fcf1b79bdf4bc2ac891297f30f63d041d8"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/8f31efff9206f9f0adb853cad6916086aac4d5ef"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/92dd9a522f01ef57f633a8c1953cf6d48ef2bcd5"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/d2c37f26d1a37f8177be5f354537f8ee3ec31cc2"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-15T06:22:12Z"
  }
}