CVE-2026-63885: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-6335-2wvm-xv3c
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CVSS 8.8
CWE-362
Published
Advisory Summary

CVE-2026-63885 is a HIGH (CVSS 8.8) security vulnerability vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-63885 at a Glance

CVE Identifier CVE-2026-63885
GHSA Identifier GHSA-6335-2wvm-xv3c
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-63885

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-2026-63885, 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 CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), where the product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently. 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: drm/gem: fix race between change_handle and handle_delete drm_gem_change_handle_ioctl leaves the old handle live in the IDR during the window between spin_unlock(table_lock) and the final spin_lock(table_lock). A concurrent drm_gem_handle_delete on the old handle succeeds in this window, decrements handle_count to 0, and frees the GEM object while the new handle's IDR entry still references it. NULL the old handle's IDR entry before dropping table_lock so that any concurrent GEM_CLOSE on the old handle sees NULL and returns -EINVAL. Restore the old entry on the prime-bookkeeping error path.

References

NVD — CVE-2026-63885 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-63885
git.kernel.org/stable/c/0dfa42cfe4... WEB
https://git.kernel.org/stable/c/0dfa42cfe4dbe114533480503934f43e33c1e83d
git.kernel.org/stable/c/7164d78559... WEB
https://git.kernel.org/stable/c/7164d78559b0ff29931a366a840a9e5dd53d4b7c
git.kernel.org/stable/c/cde2c9257c... WEB
https://git.kernel.org/stable/c/cde2c9257cbe8463b9dcf7b1075177b72b5fd938

Frequently Asked Questions

What is CVE-2026-63885?
CVE-2026-63885 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition').
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-63885?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2026-63885?
CVE-2026-63885 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-63885?
CVE-2026-63885 is classified under CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.).
How can I check Maven dependencies for CVE-2026-63885?
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-6335-2wvm-xv3c",
  "modified" : "2026-07-20T15:31:49Z",
  "published" : "2026-07-19T18:31:44Z",
  "aliases" : [ "CVE-2026-63885" ],
  "details" : "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gem: fix race between change_handle and handle_delete\n\ndrm_gem_change_handle_ioctl leaves the old handle live in the IDR\nduring the window between spin_unlock(table_lock) and the final\nspin_lock(table_lock). A concurrent drm_gem_handle_delete on the old\nhandle succeeds in this window, decrements handle_count to 0, and frees\nthe GEM object while the new handle's IDR entry still references it.\n\nNULL the old handle's IDR entry before dropping table_lock so that any\nconcurrent GEM_CLOSE on the old handle sees NULL and returns -EINVAL.\nRestore the old entry on the prime-bookkeeping error path.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-63885"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/0dfa42cfe4dbe114533480503934f43e33c1e83d"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/7164d78559b0ff29931a366a840a9e5dd53d4b7c"
  }, {
    "type" : "WEB",
    "url" : "https://git.kernel.org/stable/c/cde2c9257cbe8463b9dcf7b1075177b72b5fd938"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-362" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-07-19T16:17:05Z"
  }
}