CVE-2026-84574 in macOS
Summary
by MITRE • 09/15/2026
A permissions issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to bypass Privacy preferences.
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Analysis
by VulDB Data Team • 09/15/2026
The vulnerability described involves a critical flaw in the access control mechanisms of Apple's operating systems, specifically affecting versions prior to macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7. This issue stems from inadequate state management within the privacy preference subsystems that govern how applications interact with sensitive user data and system resources. In a properly secured environment, an application must undergo rigorous verification of its permissions before being granted access to protected assets such as contacts, calendars, location services, or camera feeds. However, due to this specific implementation error, the internal state tracking responsible for validating these requests fails to correctly enforce restrictions under certain conditions. This allows malicious or compromised applications to bypass established privacy preferences, effectively operating with elevated privileges that were explicitly denied by the user through standard system settings.
From a technical perspective, this flaw represents a failure in enforcing security policies at the application runtime level. The core issue lies in how the operating system maintains and checks the state of permission grants during dynamic interactions between apps and protected APIs. When an app attempts to access restricted data, the system is supposed to query its internal database of user-defined privacy settings. In this vulnerable scenario, a race condition or logic error in the state management process allows the request to proceed without proper validation. This bypass mechanism undermines the fundamental principle of least privilege, which dictates that software should only have access to the minimum resources necessary for its function. By circumventing these checks, an attacker can exfiltrate sensitive personal information or manipulate system behavior without triggering standard security alerts or requiring additional user consent.
The operational impact of this vulnerability is severe, particularly in enterprise and high-security environments where data integrity and privacy are paramount. An adversary exploiting this flaw could silently harvest private user data, including location history, communication logs, and media files, leading to significant breaches of confidentiality. Furthermore, the ability to bypass privacy controls can serve as a stepping stone for more advanced attacks, such as privilege escalation or lateral movement within a networked environment. Since these permissions are often tied to core system functionalities, their compromise erodes user trust in the operating system's security model and exposes individuals to risks ranging from identity theft to targeted surveillance. The lack of immediate detection mechanisms means that such exploitation can persist undetected for extended periods, allowing attackers to establish persistent access points within affected systems.
To mitigate this risk, organizations must prioritize the deployment of the specified software updates across all managed devices. Ensuring that macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7 are installed is essential for closing the state management gap that enables permission bypasses. In addition to patching, administrators should enforce strict application whitelisting policies and utilize endpoint detection and response tools to monitor for anomalous access patterns to protected APIs. Regular audits of privacy settings can also help identify any unauthorized changes or unusual activity indicative of exploitation attempts. From a broader security architecture standpoint, this incident highlights the importance of rigorous code review processes focused on state consistency and permission enforcement logic within operating system components.
This vulnerability aligns with several established industry standards for classifying software weaknesses. It is closely related to CWE-284 Improper Access Control, which covers scenarios where an actor gains unauthorized access to resources or functionality. Additionally, the technique of bypassing privacy preferences can be mapped to MITRE ATT&CK tactics involving Defense Evasion and Credential Access, as attackers use these flaws to avoid detection and gather sensitive information without triggering alarms. Understanding this vulnerability through the lens of CWE-284 emphasizes that the root cause is a failure in the system's ability to restrict user actions appropriately. By addressing both the immediate patch requirement and reinforcing broader access control policies, security teams can significantly reduce their exposure to this class of threats and maintain robust protection for end-user data.