A critical sandbox escape vulnerability in macOS may allow local applications to execute unauthorized code with elevated privileges.

This is a logic vulnerability involving improper data redaction within system logs, which can be leveraged to facilitate a sandbox escape. Per the CVSS vector (PR:L), this requires an attacker to have local, low-privileged access to the target system.

By escaping the sandbox, an attacker can gain unauthorized access to sensitive files, data, or system functions that are normally restricted. The 8.8 CVSS score reflects the high severity of this bypass, which effectively neutralizes the primary security boundary protecting macOS applications from one another and the underlying system.

Immediate Action: Apply the latest macOS security updates (14.8.7, 15.7.7, or 26.5) to all workstations and servers.

Proactive Monitoring: Audit system logs for anomalous entries or patterns that suggest an application is attempting to access restricted resources outside its sandbox.

Compensating Controls: Implement strict application control policies to ensure only signed and verified software is permitted to run on macOS systems.

Public Exploit Available: Unknown — no confirmed weaponized exploit or public PoC identified in provided data.

Given the potential for sandbox breakout, this vulnerability should be treated as a high-priority update. Administrators should prioritize the deployment of the provided patches across all macOS endpoints to maintain system integrity and prevent lateral movement or privilege escalation.