CVE-2026-98008: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-h4xg-972w-f7c3
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Advisory Summary

CVE-2026-98008 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-2026-98008 at a Glance

CVE Identifier CVE-2026-98008
GHSA Identifier GHSA-h4xg-972w-f7c3
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-2026-98008

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-2026-98008, 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: macb: fix NULL pointer dereference on unbind with fixed-link When the device tree describes a fixed-link and has no "mdio" child node, macb_mii_init() returns early without allocating the MDIO bus, leaving bp->mii_bus as NULL. Two cleanup paths then dereference this NULL bus: 1. On driver unbind, macb_remove() unconditionally calls mdiobus_unregister(bp->mii_bus), which oopses: Unable to handle kernel NULL pointer dereference at virtual address 00000000000004a8 pc : mdiobus_unregister+0x14/0xa4 lr : macb_remove+0x38/0xa4 Call trace: mdiobus_unregister+0x14/0xa4 (P) macb_remove+0x38/0xa4 platform_remove+0x20/0x30 device_release_driver_internal+0x1c8/0x224 unbind_store+0xb4/0xbc 2. On the probe error path in macb_probe(), reached when macb_mii_init() has succeeded but a subsequent step fails, the err_out_unregister_mdio label runs the same unconditional cleanup. mdiobus_unregister() and mdiobus_free() do not guard against a NULL bus, so guard the calls in both macb_remove() and the probe error path.

References

NVD — CVE-2026-98008 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98008
git.kernel.org/stable/c/054ad8e660... WEB
https://git.kernel.org/stable/c/054ad8e66025eb4778d840bef80c270646cebcd2
git.kernel.org/stable/c/38b6be1010... WEB
https://git.kernel.org/stable/c/38b6be101006d3e7af972999f45d4f1e8250587a
git.kernel.org/stable/c/5710f6a74f... WEB
https://git.kernel.org/stable/c/5710f6a74f63cbba0e15cd75917234916181c9d4
git.kernel.org/stable/c/afa224cabc... WEB
https://git.kernel.org/stable/c/afa224cabc0132ca414b9141b1a919ca2d318cd0
git.kernel.org/stable/c/edb39c7666... WEB
https://git.kernel.org/stable/c/edb39c7666bb3924da761dfb417db85c1e5d8ad3
git.kernel.org/stable/c/f737d999fc... WEB
https://git.kernel.org/stable/c/f737d999fcb8f276d77b01ea4c2016ee01dad19b

Frequently Asked Questions

What is CVE-2026-98008?
CVE-2026-98008 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-2026-98008?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98008?
CVE-2026-98008 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98008?
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-h4xg-972w-f7c3",
  "modified" : "2026-10-03T12:31:24Z",
  "published" : "2026-09-25T12:31:32Z",
  "aliases" : [ "CVE-2026-98008" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: fix NULL pointer dereference on unbind with fixed-link\n\nWhen the device tree describes a fixed-link and has no \"mdio\" child\nnode, macb_mii_init() returns early without allocating the MDIO bus,\nleaving bp->mii_bus as NULL.\n\nTwo cleanup paths then dereference this NULL bus:\n\n1. On driver unbind, macb_remove() unconditionally calls\n   mdiobus_unregister(bp->mii_bus), which oopses:\n\n  Unable to handle kernel NULL pointer dereference at virtual address 00000000000004a8\n  pc : mdiobus_unregister+0x14/0xa4\n  lr : macb_remove+0x38/0xa4\n  Call trace:\n   mdiobus_unregister+0x14/0xa4 (P)\n   macb_remove+0x38/0xa4\n   platform_remove+0x20/0x30\n   device_release_driver_internal+0x1c8/0x224\n   unbind_store+0xb4/0xbc\n\n2. On the probe error path in macb_probe(), reached when\n   macb_mii_init() has succeeded but a subsequent step fails, the\n   err_out_unregister_mdio label runs the same unconditional cleanup.\n\nmdiobus_unregister() and mdiobus_free() do not guard against a NULL\nbus, so guard the calls in both macb_remove() and the probe error\npath.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98008"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/054ad8e66025eb4778d840bef80c270646cebcd2"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/38b6be101006d3e7af972999f45d4f1e8250587a"
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  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/edb39c7666bb3924da761dfb417db85c1e5d8ad3"
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    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/f737d999fcb8f276d77b01ea4c2016ee01dad19b"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-09-25T11:17:29Z"
  }
}