---
id: CVE-2026-86898
title: A logic issue was addressed with improved state management
summary: >-
  A logic issue was addressed with improved state management. This issue is
  fixed in Safari 27, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27.
  Opening a maliciously crafted webarchive file may lead to universal cross-site
  scripting.
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: apple
product: safari
affected:
  - safari < 27.0
  - ipados < 27.0
  - iphone_os < 27.0
  - macos < 27.0
  - visionos < 27.0
patched:
  - safari 27.0
  - ipados 27.0
  - iphone_os 27.0
  - macos 27.0
  - visionos 27.0
published: '2026-09-14'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T15:07:11.860'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86898'
references:
  - url: 'https://support.apple.com/en-us/149034'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149035'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149038'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149039'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00253
epssPercentile: 0.14979
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-17T15:56:23.950479Z'
ingestedAt: '2026-09-14T21:15:17.486Z'
---

## Overview

A logic issue was addressed with improved state management. This issue is fixed in Safari 27, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. Opening a maliciously crafted webarchive file may lead to universal cross-site scripting.

## Affected

- `safari < 27.0`
- `ipados < 27.0`
- `iphone_os < 27.0`
- `macos < 27.0`
- `visionos < 27.0`

## Remediation

Upgrade past the affected range:

- `safari 27.0`
- `ipados 27.0`
- `iphone_os 27.0`
- `macos 27.0`
- `visionos 27.0`