CVE-2026-98526: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-cxpq-4fh3-6276
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Advisory Summary

CVE-2026-98526 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-2026-98526 at a Glance

CVE Identifier CVE-2026-98526
GHSA Identifier GHSA-cxpq-4fh3-6276
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-2026-98526

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-2026-98526, 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: llc: reserve device headroom for allocated frames llc_alloc_frame() reserves link-layer headroom using the device type. This is insufficient for stacked Ethernet devices such as VLAN devices, where vlan_dev_hard_header() pushes a VLAN header before the lower device's Ethernet header. An LLC response on such a device can therefore underflow skb headroom in eth_header(). Use LL_RESERVED_SPACE() to account for the device's actual required headroom while preserving the existing LLC device-type check.

References

NVD — CVE-2026-98526 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98526
git.kernel.org/stable/c/018020f5a4... WEB
https://git.kernel.org/stable/c/018020f5a48cc86fdd6dc2d380f6c70443ae7639
git.kernel.org/stable/c/16ceac2daa... WEB
https://git.kernel.org/stable/c/16ceac2daa89dd16917bc488ab05b9dd6961a603
git.kernel.org/stable/c/1937222c25... WEB
https://git.kernel.org/stable/c/1937222c2511ac91377d39f28106c34734f5f8c6
git.kernel.org/stable/c/3361c93e41... WEB
https://git.kernel.org/stable/c/3361c93e417384ebf28003e0fb6d5304653d3b05
git.kernel.org/stable/c/3a3f57c406... WEB
https://git.kernel.org/stable/c/3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1
git.kernel.org/stable/c/72b5b9a28b... WEB
https://git.kernel.org/stable/c/72b5b9a28b996e09b8b5b944370c79851bb68f52
git.kernel.org/stable/c/7c38524b2b... WEB
https://git.kernel.org/stable/c/7c38524b2b2456bd33cb360420da6cbf9cad1b33
git.kernel.org/stable/c/e06f8b6e27... WEB
https://git.kernel.org/stable/c/e06f8b6e27cc616d3c587e9784c4a033eb310a16

Frequently Asked Questions

What is CVE-2026-98526?
CVE-2026-98526 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-2026-98526?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98526?
CVE-2026-98526 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98526?
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-cxpq-4fh3-6276",
  "modified" : "2026-10-18T18:31:52Z",
  "published" : "2026-10-18T18:31:52Z",
  "aliases" : [ "CVE-2026-98526" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nllc: reserve device headroom for allocated frames\n\nllc_alloc_frame() reserves link-layer headroom using the device type.\nThis is insufficient for stacked Ethernet devices such as VLAN devices,\nwhere vlan_dev_hard_header() pushes a VLAN header before the lower\ndevice's Ethernet header. An LLC response on such a device can\ntherefore underflow skb headroom in eth_header().\n\nUse LL_RESERVED_SPACE() to account for the device's actual required\nheadroom while preserving the existing LLC device-type check.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98526"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/018020f5a48cc86fdd6dc2d380f6c70443ae7639"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/16ceac2daa89dd16917bc488ab05b9dd6961a603"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1937222c2511ac91377d39f28106c34734f5f8c6"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3361c93e417384ebf28003e0fb6d5304653d3b05"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/72b5b9a28b996e09b8b5b944370c79851bb68f52"
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    "url" : "https://git.kernel.org/stable/c/7c38524b2b2456bd33cb360420da6cbf9cad1b33"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/e06f8b6e27cc616d3c587e9784c4a033eb310a16"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:04Z"
  }
}