CVE-2026-84589 in macOS
Summary
by MITRE • 09/15/2026
A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Golden Gate 27. An app may be able to modify Privacy preferences.
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Analysis
by VulDB Data Team • 09/15/2026
The vulnerability described involves a flaw in the permission management system of Apple's operating environment, specifically within the context leading up to or included in macOS Golden Gate version 27. This issue centers on an improper access control mechanism that allows applications to alter privacy settings without sufficient authorization or user consent. In modern operating systems, particularly those adhering to strict sandboxing and privacy frameworks like Apple’s TCC (Transparency, Consent, and Control), permissions are critical for maintaining system integrity and user data confidentiality. The flaw effectively bypasses these safeguards, enabling a malicious or compromised application to modify the very preferences that dictate what resources it can access, such as camera, microphone, location services, or files in sensitive directories.
From a technical perspective, this represents a classic case of insufficient privilege separation and inadequate validation of administrative actions. When an application requests changes to privacy permissions, the operating system is expected to verify whether the caller has the necessary rights to make that change and often requires explicit user interaction through a consent dialog. The identified flaw suggests that these checks were either missing or could be circumvented, allowing software with lower privileges to escalate its own access levels by rewriting configuration states directly. This undermines the fundamental security model where users retain ultimate control over their data exposure. Such behavior aligns closely with CWE-269 Improper Privilege Management and CWE-732 Incorrect Permission Assignment for Critical Resource, as it involves granting capabilities that should be restricted to higher-level system processes or require explicit user approval.
The operational impact of this vulnerability is significant because it erodes the trust model upon which secure computing relies. If an attacker can exploit this flaw, they could potentially enable access to sensitive sensors and data stores without triggering standard security warnings. For instance, a malicious app might silently turn on microphone recording or location tracking, leading to unauthorized surveillance and data exfiltration. This capability also facilitates further attacks by allowing the application to bypass other security controls that depend on these privacy settings being in their default restrictive state. The ability to modify preferences programmatically means that once an initial foothold is gained through any vector, such as a phishing attack or drive-by download, the attacker can establish persistent and stealthy access to critical system resources.
This behavior also maps directly to specific tactics within the MITRE ATT&CK framework for macOS environments. It relates to T1059 Command and Scripting Interpreter if used in conjunction with scripts that automate permission changes, but more accurately it falls under T1211 Exploitation for Defense Evasion or potentially T1546 Event Triggered Execution if the change triggers subsequent actions. Furthermore, since it involves modifying system configuration to maintain access, it aligns with persistence mechanisms where an attacker ensures continued access by altering security policies. The lack of proper restrictions allows adversaries to operate more freely within the user space, making detection and mitigation difficult without deep behavioral monitoring.
Mitigation for this issue primarily relies on applying the official update provided in macOS Golden Gate 27 or later versions that include these additional restrictions. Administrators should ensure all systems are patched promptly to close the gap in permission validation logic. Beyond patching, organizations can implement defense-in-depth strategies by using endpoint detection and response tools capable of monitoring for unusual changes to privacy preference files or TCC database entries. User education remains vital; while technical controls are being strengthened, users should remain vigilant against applications requesting excessive permissions that do not align with their intended functionality. Regular audits of installed software and review of permission grants can help identify any unauthorized modifications before they lead to a full compromise.