CVE-2026-98863: Software Security Vulnerability Vulnerability

UNKNOWN
Advisory Identifier: GHSA-8v5w-2f74-jcch
Share
Published
Advisory Summary

CVE-2026-98863 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-2026-98863 at a Glance

CVE Identifier CVE-2026-98863
GHSA Identifier GHSA-8v5w-2f74-jcch
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-2026-98863

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-2026-98863, 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: KVM: x86: Re-pend GET_NESTED_STATE_PAGES if getting said pages fails Re-pend GET_NESTED_STATE_PAGES before exiting to userspace if getting the nested pages fails in the KVM_RUN path. If userspace re-runs the vCPU, and vmcs02 holds valid PFNs from the *previous* run of L2, then KVM could re-enter L2 with stale, unpinned PFNs mapped into e.g. the vAPIC page. Note, both SVM and VMX (as of commit 11722439fb20 ("KVM: nVMX: Ensure KVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit") ensure the request is cleared on VM-Exit (including the "forced" case), i.e. there is no risk of double-mapping due to emulated VMLAUNCH/VMRESUME/VMRUN *and* the request trying to map the nested pages.

References

NVD — CVE-2026-98863 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-98863
git.kernel.org/stable/c/10180a2775... WEB
https://git.kernel.org/stable/c/10180a277549339020b08000206092c07e0bff5a
git.kernel.org/stable/c/525694a602... WEB
https://git.kernel.org/stable/c/525694a6021ec6c8f7ce1f38acdf2dd77698fec1
git.kernel.org/stable/c/942192dbcd... WEB
https://git.kernel.org/stable/c/942192dbcd3a06695ef6b31cf10a41a21cf014d8

Frequently Asked Questions

What is CVE-2026-98863?
CVE-2026-98863 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-2026-98863?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-98863?
CVE-2026-98863 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2026-98863?
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-8v5w-2f74-jcch",
  "modified" : "2026-10-18T18:32:06Z",
  "published" : "2026-10-18T18:32:06Z",
  "aliases" : [ "CVE-2026-98863" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Re-pend GET_NESTED_STATE_PAGES if getting said pages fails\n\nRe-pend GET_NESTED_STATE_PAGES before exiting to userspace if getting the\nnested pages fails in the KVM_RUN path.  If userspace re-runs the vCPU, and\nvmcs02 holds valid PFNs from the *previous* run of L2, then KVM could\nre-enter L2 with stale, unpinned PFNs mapped into e.g. the vAPIC page.\n\nNote, both SVM and VMX (as of commit 11722439fb20 (\"KVM: nVMX: Ensure\nKVM_REQ_GET_NESTED_STATE_PAGES is cleared on VM-Exit\") ensure the request\nis cleared on VM-Exit (including the \"forced\" case), i.e. there is no risk\nof double-mapping due to emulated VMLAUNCH/VMRESUME/VMRUN *and* the request\ntrying to map the nested pages.",
  "severity" : [ ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-98863"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/10180a277549339020b08000206092c07e0bff5a"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/525694a6021ec6c8f7ce1f38acdf2dd77698fec1"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/942192dbcd3a06695ef6b31cf10a41a21cf014d8"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : null,
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-10-18T16:17:40Z"
  }
}