8.8 High

CVE-2026-84545 A use after free issue was addressed with improved memory management

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An app with App Sandbox restrictions may be able to escape the sandbox and execute code with root privileges.

CVSS 3.1 detail

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Exploitable with local access to the machine, with an ordinary account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Local
Attack complexity: Low
Privileges required: Low
Interaction: None
Scope: Changed
Confidentiality: High
Integrity: High
Availability: High

Affected products and versions

Product	Affected versions	Fixed in
macOS 27	earliest → < 27	27
macOS 26.7	earliest → < 26.7.2	26.7.2
macOS 15.8	earliest → < 15.8.2	15.8.2

References

support.apple.com support.apple.com
support.apple.com support.apple.com
support.apple.com support.apple.com

Timeline

Published October 26, 2026
Last modified November 4, 2026

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