CVE-2026-64743 in iOS
Summary
by MITRE • 07/28/2026
An authorization issue was addressed with improved state management. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. An app may be able to access sensitive user data.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 07/28/2026
This authorization vulnerability represents a critical flaw in the state management mechanisms that govern how applications interact with user data across multiple Apple operating systems. The issue stems from inadequate handling of application states and session management, creating potential pathways for unauthorized data access. When an application fails to properly manage its authorization state transitions, it can maintain elevated privileges beyond intended boundaries or incorrectly grant access to protected resources. Such flaws typically manifest when the system does not adequately validate the current authorization context before allowing data operations, potentially enabling malicious applications to exploit temporal inconsistencies in access control enforcement.
The technical implementation of this vulnerability involves weak state validation during application lifecycle events and user interaction sequences. When applications transition between foreground and background states, or when users navigate between different interface contexts, proper authorization checks should occur to verify that the current session remains valid and appropriate for accessing sensitive data. The flaw likely occurs in the operating system's authorization framework where state transitions are not properly synchronized with access control decisions. This issue aligns with common weakness patterns identified in CWE-285, which addresses improper authorization scenarios, and may also relate to CWE-352, concerning cross-site request forgery vulnerabilities that can manifest in application state management. The vulnerability is particularly concerning because it affects multiple platforms simultaneously, indicating a systemic architecture flaw rather than isolated component failure.
The operational impact of this authorization issue extends beyond simple data exposure to encompass potential compromise of user privacy and system integrity across Apple's ecosystem. Applications that successfully exploit this vulnerability could gain access to sensitive personal information including but not limited to contacts, messages, location data, and potentially financial or health information depending on the specific implementation. This type of flaw creates persistent security risks where unauthorized access can occur without user knowledge or consent, as the system fails to properly enforce authorization boundaries during state transitions. The vulnerability's presence across iOS, iPadOS, macOS, tvOS, visionOS, and watchOS platforms amplifies its impact, as attackers could potentially leverage a single exploitation vector across multiple device types and usage contexts.
Apple's resolution of this issue through the specified software updates demonstrates the company's recognition of the severity of authorization state management failures. The patches implemented in iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, and watchOS 26.6 address fundamental flaws in how the operating systems manage application states and validate authorization contexts during transitions. These updates likely include enhanced session validation mechanisms, improved state synchronization between application components, and stronger enforcement of access control policies during lifecycle events. Security practitioners should note that this vulnerability classification aligns with ATT&CK technique T1078 which covers valid accounts and privilege escalation through improper access control management. Organizations should prioritize deployment of these updates across all affected platforms to remediate potential unauthorized data access scenarios and maintain compliance with security standards such as those outlined in NIST SP 800-53 for authorization and access control controls.