---
id: CVE-2026-86875
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 Xcode 27. Parsing a maliciously crafted binary may lead to
  unexpected app termination.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'
cvssSource: adp
vendor: Apple
product: Xcode
affected:
  - Xcode < 27
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-20T14:54:11.082866Z'
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T14:54:14.751Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-86875'
references:
  - url: 'https://support.apple.com/en-us/149040'
tags:
  - cve.org
epss: 0.00278
epssPercentile: 0.20166
ingestedAt: '2026-10-20T01:49:42.597Z'
---

## Overview

An input validation issue was addressed with improved input validation. This issue is fixed in Xcode 27. Parsing a maliciously crafted binary may lead to unexpected app termination.

## Affected

- `Xcode < 27`

## Remediation

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