CVE-2026-84547: Input Validation

Q: Which systems are exposed to this issue?

Apple macOS Golden Gate, macOS Sequoia, and macOS Tahoe are affected. Apple identifies fixes in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.

Q: What does an attacker need to exploit this vulnerability?

The attacker must be in physical proximity to the affected system. The available information does not describe any remote exploitation path.

Published Oct 20, 2026

Updated

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An attacker in physical proximity may be able to corrupt process memory.

Affected Software

3 affected components

Apple macOS Golden Gate<27

Apple macOS Sequoia<15.8

Apple macOS Tahoe<26.7

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade macOS Golden Gate to a version that resolves this vulnerability.
Fixed in 27
Upgrade
Upgrade macOS Sequoia to a version that resolves this vulnerability.
Fixed in 15.8
Upgrade
Upgrade macOS Tahoe to a version that resolves this vulnerability.
Fixed in 26.7

Event History

Oct 20, 2026

CVE Published

via MITRE·12:50 AM

Data Sourced

via MITRE·12:50 AM

DescriptionWeakness

Data Sourced

via NVD·01:17 AM

Description

Frequently Asked Questions

Which systems are exposed to this issue?

Apple macOS Golden Gate, macOS Sequoia, and macOS Tahoe are affected. Apple identifies fixes in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.

What does an attacker need to exploit this vulnerability?

The attacker must be in physical proximity to the affected system. The available information does not describe any remote exploitation path.

What is the potential impact?

An attacker in physical proximity may be able to corrupt process memory. The provided information does not specify whether this leads to code execution, privilege escalation, or a denial of service.