Executive brief
A security vulnerability in macOS could allow a malicious application to bypass its sandbox restrictions. The sandbox is a security layer designed to prevent apps from accessing sensitive system data or other applications' information without permission. If exploited, a malicious app could gain unauthorized access to parts of the operating system it should not be able to reach.
Technical details
A permissions issue exists in macOS that could allow a malicious application to escape its sandbox environment. The vulnerability stems from insufficient restrictions within the sandbox framework, which Apple has addressed by implementing additional permission checks. An attacker would need to convince a user to install and run a malicious application on the target system to exploit this flaw. Successful exploitation allows the application to bypass intended isolation boundaries and potentially access sensitive user data or system resources. The issue is resolved in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.
Affected products
- Apple macOS Sequoia before 15.7.8
- Apple macOS Sonoma before 14.8.8
- Apple macOS Tahoe before 26.6
Timeline
- 2026-07-27: disclosed
- 2026-07-27: patched