---
id: CVE-2026-86959
title: An input validation issue was addressed with improved input validation
summary: >-
  An input validation issue was addressed with improved input validation. This
  issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden
  Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Processing a maliciously
  crafted i…
severity: none
vendor: Apple
product: iOS and iPadOS
affected:
  - ios_and_ipados < 26.7
  - ios_and_ipados < 27
  - macOS < 15.8
  - macOS < 26.7
  - macOS < 27
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T00:50:55.665Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-86959'
references:
  - url: 'https://support.apple.com/en-us/149034'
  - url: 'https://support.apple.com/en-us/149035'
  - url: 'https://support.apple.com/en-us/149041'
  - url: 'https://support.apple.com/en-us/149042'
  - url: 'https://support.apple.com/en-us/149043'
tags:
  - cve.org
ingestedAt: '2026-10-20T01:49:42.588Z'
---

## Overview

An input validation issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Processing a maliciously crafted image may lead to unexpected process termination.

## Affected

- `ios_and_ipados < 26.7`
- `ios_and_ipados < 27`
- `macOS < 15.8`
- `macOS < 26.7`
- `macOS < 27`

## Remediation

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