---
id: CVE-2026-86921
title: A permissions issue was addressed with improved validation
summary: >-
  A permissions issue was addressed with improved validation. This issue is
  fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27,
  visionOS 27. A local attacker may be able to overwrite restricted files.
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cvssSource: adp
vendor: Apple
product: iOS and iPadOS
affected:
  - ios_and_ipados < 26.7
  - ios_and_ipados < 27
  - macOS < 27
  - visionOS < 27
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-20T10:36:26.500383Z'
published: '2026-10-20'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T20:37:13.201Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-86921'
references:
  - url: 'https://support.apple.com/en-us/149034'
  - url: 'https://support.apple.com/en-us/149035'
  - url: 'https://support.apple.com/en-us/149038'
  - url: 'https://support.apple.com/en-us/149041'
tags:
  - cve.org
epss: 0.00142
epssPercentile: 0.03532
ingestedAt: '2026-10-20T01:49:42.591Z'
---

## Overview

A permissions issue was addressed with improved validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. A local attacker may be able to overwrite restricted files.

## Affected

- `ios_and_ipados < 26.7`
- `ios_and_ipados < 27`
- `macOS < 27`
- `visionOS < 27`

## Remediation

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