CVE-2026-98559: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-4x5q-83g5-68jv
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Advisory Summary

CVE-2026-98559 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-2026-98559 at a Glance

CVE Identifier CVE-2026-98559
GHSA Identifier GHSA-4x5q-83g5-68jv
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-2026-98559

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-2026-98559, 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/smc: fix UAF on lgr list traversal in smcr_port_err() smcr_port_err() traverses smc_lgr_list.list without holding smc_lgr_list.lock, allowing a concurrent smc_lgr_terminate_sched() to free an lgr while it is still being dereferenced. Hold smc_lgr_list.lock across the traversal. Update smc_ib_gid_check() to call smcr_port_err() after releasing the lock.

References

NVD — CVE-2026-98559 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98559
git.kernel.org/stable/c/00a59600ae... WEB
https://git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599
git.kernel.org/stable/c/0edcc42843... WEB
https://git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fa
git.kernel.org/stable/c/34bcf11cd2... WEB
https://git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277
git.kernel.org/stable/c/3d35f069e1... WEB
https://git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61e
git.kernel.org/stable/c/3d65a2eb44... WEB
https://git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90e
git.kernel.org/stable/c/61cb282fe9... WEB
https://git.kernel.org/stable/c/61cb282fe97b3b0ba32ca09417a693162bf4ae3f
git.kernel.org/stable/c/a9b968e426... WEB
https://git.kernel.org/stable/c/a9b968e42690d784c241a0761c10253271f7df5d

Frequently Asked Questions

What is CVE-2026-98559?
CVE-2026-98559 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-2026-98559?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98559?
CVE-2026-98559 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98559?
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-4x5q-83g5-68jv",
  "modified" : "2026-10-18T18:31:54Z",
  "published" : "2026-10-18T18:31:54Z",
  "aliases" : [ "CVE-2026-98559" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix UAF on lgr list traversal in smcr_port_err()\n\nsmcr_port_err() traverses smc_lgr_list.list without holding\nsmc_lgr_list.lock, allowing a concurrent smc_lgr_terminate_sched()\nto free an lgr while it is still being dereferenced.\n\nHold smc_lgr_list.lock across the traversal. Update\nsmc_ib_gid_check() to call smcr_port_err() after releasing the lock.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98559"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fa"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90e"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/61cb282fe97b3b0ba32ca09417a693162bf4ae3f"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/a9b968e42690d784c241a0761c10253271f7df5d"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:08Z"
  }
}