CVE-2026-84540

Modified Modified - Updated After Analysis

Improper Authorization in macOS Golden Gate

Publication date: 2026-09-14

Last updated on: 2026-09-29

Assigner: Apple Inc.

Description

An authorization issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-14

Last Modified

2026-09-29

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-04

NVD

CVE-2026-84540

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos_golden_gate	27
apple	macos_sequoia	15.8
apple	macos_tahoe	26.7

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This is an authorization issue caused by poor state management in Apple macOS versions. It allows apps to access sensitive user data they should not be able to reach. The flaw was fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.

Detection Guidance

This vulnerability is specific to Apple macOS versions and involves an authorization issue with sensitive user data access. Detection requires checking macOS version compatibility and reviewing app permissions. No direct commands are provided in the context to detect this issue.

Impact Analysis

If you use an unpatched version of macOS Golden Gate, Sequoia, or Tahoe, malicious apps could steal your personal information like files, messages, or passwords. Always update your macOS to the latest version to stay protected.

Compliance Impact

The provided CVE data does not specify how this vulnerability affects compliance with standards like GDPR or HIPAA. The issue involves an authorization flaw allowing apps to access sensitive user data, which could potentially impact compliance if exploited. However, no direct information is given about regulatory implications.

Mitigation Strategies

Update to the latest versions of macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 to address the authorization issue.

Hi! I’m here to help you understand CVE-2026-84540. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70