CVE-2026-112570 in macOS
Summary
by MITRE • 10/26/2026
An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An app may be able to break out of its sandbox.
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Analysis
by VulDB Data Team • 10/27/2026
The vulnerability described involves a flaw in the application sandboxing mechanism within Apple's operating systems, specifically affecting versions such as macOS Golden Gate 27.2, macOS Sequoia 15.8.2, and macOS Tahoe 26.7.2. The core issue stems from insufficient restrictions or logic errors in how the system enforces boundaries between applications and their designated resource access zones. In a properly functioning sandbox environment, each application is confined to a specific set of permissions that limit its ability to interact with other apps, user data, and system resources. This isolation is critical for maintaining system integrity and preventing malicious code from propagating or accessing sensitive information beyond what the application explicitly requires.
The technical flaw allows an app to break out of these sandbox restrictions, effectively gaining access to files, processes, or network interfaces that are normally prohibited by security policies. This type of vulnerability typically arises when the operating system fails to properly validate requests for resource access or when there is a race condition in the enforcement logic that permits unauthorized operations before the restriction can be applied. By bypassing these controls, an attacker who has managed to execute malicious code within a sandboxed application could potentially read protected user data, such as documents and photos stored outside the app's container, modify system configurations, or even escalate privileges by interacting with other processes running on the device.
From a threat modeling perspective, this vulnerability aligns closely with CWE-250, which refers to execution with unnecessary privileges, and CWE-787, an out-of-bounds write that could lead to arbitrary code execution if exploited in conjunction with memory corruption flaws. In terms of the MITRE ATT&CK framework, this behavior is indicative of techniques related to Defense Evasion, specifically sandbox escape or container breakout tactics where adversaries seek to bypass application isolation mechanisms to achieve broader system access. The ability to exit the sandbox transforms a contained threat into a systemic risk, as the attacker gains a foothold that can be leveraged for further exploitation steps such as credential dumping or lateral movement within local environments.
The operational impact of this vulnerability is significant because it undermines one of the primary security layers designed to limit damage from compromised applications. If an application with legitimate access rights exploits this flaw, it could exfiltrate sensitive user information without triggering standard alerts associated with direct permission denials. Furthermore, since sandbox escapes often involve interacting with system-level APIs or kernel interfaces, they may also introduce stability issues leading to crashes or denial of service conditions for the host operating system. The risk is compounded by the fact that many modern applications rely heavily on sandboxing to handle untrusted content, meaning a successful exploit could affect a wide range of software ecosystems running on affected macOS versions.
Mitigation strategies primarily involve applying the provided security updates immediately upon availability. Apple has addressed this issue in macOS Golden Gate 27.2, Sequoia 15.8.2, and Tahoe 26.7.2 by tightening sandbox restrictions and likely improving validation checks for resource access requests. Administrators should ensure that automatic software update mechanisms are enabled to receive these patches promptly. Additionally, users can reduce exposure risk by adhering to the principle of least privilege when configuring application permissions manually through system settings. It is also advisable to monitor for unusual process behavior or unexpected file accesses using endpoint detection and response tools configured to flag sandbox escape attempts as high-severity events.