CVE-2026-98831: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-vvrp-cfq6-9c5c
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Advisory Summary

CVE-2026-98831 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-2026-98831 at a Glance

CVE Identifier CVE-2026-98831
GHSA Identifier GHSA-vvrp-cfq6-9c5c
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-2026-98831

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-2026-98831, 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: of/overlay: don't leak fragment references when changeset init fails init_overlay_changeset() stores the number of initialized fragments in ovcs->count only on full success. When find_target() or the __symbols__ lookup fails partway through, the target and overlay references taken for the fragments initialized so far are never dropped: free_overlay_changeset() bounds its cleanup loop by ovcs->count, which is still 0. Store the running count on the error path so free_overlay_changeset() puts whatever was set up. The store is guarded by ovcs->fragments because on the allocation-failure path cnt still holds the counting pass total while there is no fragments array; everywhere else cnt only counts fully-initialized fragments.

References

NVD — CVE-2026-98831 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98831
git.kernel.org/stable/c/1d62f0f2bc... WEB
https://git.kernel.org/stable/c/1d62f0f2bc7edb12ed09f71203df0e47fa4efca4
git.kernel.org/stable/c/3a23fb158b... WEB
https://git.kernel.org/stable/c/3a23fb158ba517b77a2e5258263bdfdaa480f758
git.kernel.org/stable/c/7a46f1917b... WEB
https://git.kernel.org/stable/c/7a46f1917b320cc8762183b802301da02a191b6a
git.kernel.org/stable/c/894573e2fd... WEB
https://git.kernel.org/stable/c/894573e2fdaeb1b15030b7eebc22615edf28a6cd

Frequently Asked Questions

What is CVE-2026-98831?
CVE-2026-98831 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-2026-98831?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98831?
CVE-2026-98831 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98831?
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-vvrp-cfq6-9c5c",
  "modified" : "2026-10-18T18:32:05Z",
  "published" : "2026-10-18T18:32:05Z",
  "aliases" : [ "CVE-2026-98831" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nof/overlay: don't leak fragment references when changeset init fails\n\ninit_overlay_changeset() stores the number of initialized fragments\nin ovcs->count only on full success. When find_target() or the\n__symbols__ lookup fails partway through, the target and overlay\nreferences taken for the fragments initialized so far are never\ndropped: free_overlay_changeset() bounds its cleanup loop by\novcs->count, which is still 0.\n\nStore the running count on the error path so free_overlay_changeset()\nputs whatever was set up. The store is guarded by ovcs->fragments\nbecause on the allocation-failure path cnt still holds the counting\npass total while there is no fragments array; everywhere else cnt\nonly counts fully-initialized fragments.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98831"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/1d62f0f2bc7edb12ed09f71203df0e47fa4efca4"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/3a23fb158ba517b77a2e5258263bdfdaa480f758"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7a46f1917b320cc8762183b802301da02a191b6a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/894573e2fdaeb1b15030b7eebc22615edf28a6cd"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:37Z"
  }
}