Executive brief
A vulnerability in macOS could allow a malicious application to bypass security restrictions. If exploited, an app could escape its isolated 'sandbox' environment to access sensitive data or execute commands with higher system privileges than intended. This could lead to unauthorized access to user information or full control over the affected computer.
Technical details
A buffer overflow vulnerability exists in macOS due to insufficient bounds checking. An attacker can exploit this by tricking a user into running a malicious application. Successful exploitation allows the application to achieve sandbox escape and execute arbitrary code with elevated privileges. Apple addressed the issue by improving bounds checking 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