CVE-2026-112569 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 failure in the operating system's application isolation mechanisms, specifically within the macOS sandboxing architecture. This flaw allows an application that is otherwise confined by security restrictions to escape its designated execution environment and access resources or perform actions outside its permitted scope. Such breaches of confinement are critical because they undermine one of the primary defense-in-depth strategies employed by modern operating systems to limit the damage caused by compromised software, malware, or untrusted code. By breaking out of the sandbox, a malicious actor can potentially bypass user permissions, access sensitive data stored in protected directories, interact with other applications, or escalate privileges within the system context.
This type of flaw is commonly categorized under CWE-250, which refers to execution with unnecessary privileges, and more specifically relates to issues where security boundaries are not properly enforced due to configuration errors or implementation bugs in the sandboxing engine. In terms of offensive cybersecurity frameworks like MITRE ATT&CK, this vulnerability facilitates techniques associated with Defense Evasion, particularly those involving process injection or container escape if applicable, as well as Privilege Escalation depending on how the sandbox break is exploited. The ability to bypass these restrictions effectively neutralizes the protective layer intended to contain threats within a limited environment, thereby increasing the attack surface available to an adversary who has gained initial access through other means such as phishing or drive-by downloads.
The operational impact of this vulnerability can be severe depending on the context in which it is exploited. If successfully leveraged, it could allow attackers to exfiltrate confidential information including user credentials, financial data, or intellectual property stored within applications that were previously considered secure due to their sandboxed state. Furthermore, escaping the sandbox may enable lateral movement across a network if the compromised application has access to shared resources or internal services. It also poses significant risks to system integrity by allowing unauthorized modifications to system files or settings, potentially leading to persistent backdoors or further exploitation of other vulnerabilities within the broader operating system infrastructure.
Apple addressed this issue in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, and macOS Tahoe 26.7.2 by implementing additional sandbox restrictions designed to close the specific gaps that allowed for confinement breaches. These updates likely involve tightening permission checks, enhancing code signing verification processes within the sandbox context, or restricting access to certain kernel-level APIs that were previously accessible from untrusted contexts. To mitigate risks associated with this and similar vulnerabilities, organizations should ensure that all macOS devices are updated to the latest patched versions immediately upon release. Additionally, administrators should enforce strict application whitelisting policies where feasible, monitor for unusual process behavior indicative of sandbox escapes using endpoint detection and response tools, and limit user privileges to minimize the potential impact if a breach occurs. Regular auditing of installed applications and removal of unnecessary software can also reduce the overall attack surface available to adversaries seeking to exploit such confinement failures.