---
id: CVE-2026-86915
title: A race condition was addressed with improved locking
summary: >-
  A race condition was addressed with improved locking. This issue is fixed in
  macOS Golden Gate 27. An app may be able to cause unexpected system
  termination.
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: adp
vendor: Apple
product: macOS
affected:
  - macOS < 27
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-20T14:06:12.653801Z'
published: '2026-10-20'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T20:41:05.461Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-86915'
references:
  - url: 'https://support.apple.com/en-us/149035'
tags:
  - cve.org
epss: 0.00095
epssPercentile: 0.00652
ingestedAt: '2026-10-20T01:49:42.593Z'
---

## Overview

A race condition was addressed with improved locking. This issue is fixed in macOS Golden Gate 27. An app may be able to cause unexpected system termination.

## Affected

- `macOS < 27`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.