---
id: CVE-2026-84555
title: An authorization issue was addressed with improved access control
summary: >-
  An authorization issue was addressed with improved access control. This issue
  is fixed in macOS Golden Gate 27, macOS Sequoia 15.8. An app may be able to
  access sensitive user data.
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'
cwe:
  - CWE-284
vendor: apple
product: macos
affected:
  - 'macos >= 15.0, < 15.8'
  - 'macos >= 26.0, < 27.0'
patched:
  - macos 27.0
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T18:00:46.377'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84555'
references:
  - url: 'https://support.apple.com/en-us/149035'
    label: product-security@apple.com
  - url: 'https://support.apple.com/en-us/149043'
    label: product-security@apple.com
tags:
  - nvd
  - cve.org
epss: 0.00155
epssPercentile: 0.03897
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-15T18:05:26.822520Z'
ingestedAt: '2026-09-14T21:15:17.470Z'
---

## Overview

An authorization issue was addressed with improved access control. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8. An app may be able to access sensitive user data.

## Affected

- `macos >= 15.0, < 15.8`
- `macos >= 26.0, < 27.0`

## Remediation

Upgrade past the affected range:

- `macos 27.0`