CVE-2026-43760 in macOS
Summary
by MITRE • 07/28/2026
An access issue was addressed with improved access restrictions. This issue is fixed in macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to access user-sensitive data.
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Analysis
by VulDB Data Team • 07/28/2026
This vulnerability represents a critical access control weakness that could potentially allow malicious applications to bypass intended security boundaries and access sensitive user data. The issue stems from insufficient access restrictions within the operating system's permission model, creating opportunities for unauthorized data exposure. When properly addressed through improved access controls, this flaw would have enabled applications to circumvent normal security mechanisms designed to protect user privacy and confidential information. The vulnerability affects specific versions of macOS including Sonoma 14.8.8 and Tahoe 26.6, indicating targeted fixes for these operating system releases.
The technical nature of this access issue aligns with common software security flaws categorized under CWE-284, which addresses improper access control mechanisms within applications and operating systems. This weakness could manifest through various attack vectors including privilege escalation, unauthorized data reading, or information disclosure scenarios where applications gain access to resources they should not be permitted to reach. The fix implemented in the updated macOS versions likely involves strengthening kernel-level access controls, enhancing sandboxing mechanisms, or improving the enforcement of application permission boundaries.
From an operational impact perspective, this vulnerability could have enabled malicious actors to extract sensitive user data including personal information, documents, communications, or other confidential materials stored on affected systems. The potential for unauthorized access creates significant risks for both individual users and enterprise environments where data protection is paramount. Organizations relying on macOS platforms would have faced increased exposure to data breaches, privacy violations, and potential compliance issues with various regulatory frameworks governing data protection and user privacy.
The mitigation strategy implemented by Apple through the security updates addresses this vulnerability at the system level rather than requiring application-level patches or workarounds. This approach ensures comprehensive protection across all applications running on the affected macOS versions. The fix demonstrates proper vulnerability management practices aligned with industry standards for addressing access control weaknesses, providing users with immediate protection without requiring additional configuration changes or user intervention. Organizations should prioritize deployment of these updates to maintain system integrity and protect against potential exploitation of this access control flaw.