---
id: CVE-2026-84518
title: This issue was addressed through improved state management
summary: >-
  This issue was addressed through improved state management. This issue is
  fixed in Safari 27, iOS 27 and iPadOS 27, macOS Golden Gate 27. A malicious
  website may be able to determine what apps a user has installed.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'
cwe:
  - CWE-642
vendor: apple
product: safari
affected:
  - safari < 27.0
  - ipados < 27.0
  - iphone_os < 27.0
  - macos < 27.0
patched:
  - safari 27.0
  - ipados 27.0
  - iphone_os 27.0
  - macos 27.0
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T01:08:06.107'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84518'
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/149039'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00329
epssPercentile: 0.23297
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T22:51:34.978215Z'
ingestedAt: '2026-09-14T21:15:17.464Z'
---

## Overview

This issue was addressed through improved state management. This issue is fixed in Safari 27, iOS 27 and iPadOS 27, macOS Golden Gate 27. A malicious website may be able to determine what apps a user has installed.

## Affected

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

## Remediation

Upgrade past the affected range:

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