CVE-2026-64702 in macOS
Summary
by MITRE • 07/28/2026
An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to break out of its sandbox.
Be aware that VulDB is the high quality source for vulnerability data.
Analysis
by VulDB Data Team • 07/28/2026
This vulnerability represents a sandbox escape condition that allows applications to potentially bypass security restrictions designed to isolate them from critical system resources and user data. The issue stems from insufficient sandboxing mechanisms that fail to properly enforce compartmentalization boundaries between applications and the operating system core. Such vulnerabilities directly contradict the fundamental principles of application security architecture where sandboxing serves as a critical defense-in-depth measure. The flaw enables malicious or compromised applications to access restricted areas of the filesystem, system memory, or network interfaces that should remain off-limits to prevent unauthorized data access or system manipulation.
The technical nature of this vulnerability aligns with common software security weaknesses documented under CWE-254, which addresses security features that are improperly configured or implemented. The sandbox escape occurs when applications can leverage system calls or API interactions that were not properly restricted by the sandboxing framework. This typically involves exploiting insufficient validation of system resource access or improper handling of inter-process communication channels that should remain isolated. Attackers could potentially use this vulnerability to read sensitive files, modify system configurations, or establish persistent access to user data without proper authorization.
The operational impact of this vulnerability extends beyond simple privilege escalation scenarios as it fundamentally undermines the security model of modern operating systems. Applications running with sandbox restrictions may gain unauthorized access to other applications' data, system logs, or personal information stored in protected directories. This compromise affects the confidentiality and integrity of user data while potentially enabling further attacks such as credential theft, lateral movement within the system, or establishment of backdoors. The vulnerability particularly impacts enterprise environments where application isolation is crucial for preventing cross-application data leakage and maintaining regulatory compliance.
Organizations should immediately deploy the security updates released by Apple for macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6 to address this sandbox escape vulnerability. System administrators should conduct comprehensive vulnerability assessments to identify any applications that may have been compromised prior to patch installation. The mitigation strategy should include monitoring for unauthorized file access patterns or suspicious network activity that could indicate exploitation attempts. Additionally, organizations should review their application deployment policies and ensure that only trusted applications are granted system-level permissions, as this vulnerability could enable previously restricted applications to gain elevated privileges through sandbox bypass techniques. This remediation aligns with the principle of least privilege enforcement commonly referenced in cybersecurity frameworks such as NIST SP 800-53 and ISO 27001 standards.