Logic Issue in macOS Golden Gate, Sequoia, and Tahoe
CVE-2026-84578

8.8HIGH

Key Information:

Vendor

Apple
Status
Mac OS
Vendor
CVE Published:
14 September 2026

What is CVE-2026-84578?

A logic issue was identified in multiple versions of macOS that could potentially allow applications to escape their designated sandbox environments. This vulnerability has been addressed with improved verification checks in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7, which reinforces the platform's security integrity.

Affected Version(s)

macOS 0 < 15.8

macOS 0 < 26.7

macOS 0 < 27

References

https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149042
https://support.apple.com/en-us/149043

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.