CVE-2026-43792 in macOS
Summary
by MITRE • 07/28/2026
An authorization issue was addressed with improved state management. This issue is fixed in Safari 26.6, macOS Tahoe 26.6. An app may be able to access sensitive user data.
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Analysis
by VulDB Data Team • 07/28/2026
This vulnerability represents a critical authorization flaw that emerged within Apple's Safari browser and macOS Tahoe operating system, specifically affecting versions prior to 26.6. The issue stems from inadequate state management mechanisms that allow unauthorized applications to potentially access sensitive user data through compromised authorization boundaries. The technical root cause involves improper handling of application states during web navigation and resource access operations, creating potential attack vectors where malicious or poorly designed applications could exploit these gaps in the authorization framework.
The vulnerability manifests when applications fail to properly maintain their authorization context during state transitions, enabling unauthorized data access patterns that should be restricted by the system's security model. This authorization bypass occurs through manipulation of application state variables that control access permissions, allowing an app to potentially read or modify user data that it would normally not have access to based on its granted permissions. The flaw specifically impacts how Safari manages session states and authorization tokens when transitioning between different web contexts, creating opportunities for privilege escalation attacks.
From an operational perspective, this vulnerability poses significant risks to user privacy and data security across the affected platforms. Attackers could potentially exploit this issue to access sensitive personal information, browsing history, authentication credentials, or other confidential data stored within the browser environment. The impact extends beyond individual users to enterprise environments where unauthorized data access could lead to corporate espionage, identity theft, or compliance violations that breach regulatory requirements such as gdpr, hipaa, or pci dss standards.
The fix implemented in Safari 26.6 and macOS Tahoe 26.6 addresses this issue through enhanced state management protocols that properly track application authorization contexts during all state transitions. This remediation aligns with established security practices and follows the principles outlined in cwe-284 (improper access control) and cwe-352 (cross-site request forgery) categories. The solution incorporates improved session handling mechanisms, enhanced authorization token validation, and more robust state serialization that prevents unauthorized applications from accessing restricted data through manipulated application states.
Security professionals should prioritize the deployment of these updates across all affected systems, particularly in enterprise environments where multiple applications may be operating within the same browser context. Additional mitigations include implementing network monitoring to detect unusual data access patterns, conducting regular security assessments of web applications, and maintaining up-to-date threat intelligence feeds that track similar authorization bypass vulnerabilities. Organizations should also consider applying the principle of least privilege to browser applications and regularly review application permissions to minimize potential attack surface exposure. The fix demonstrates the importance of proper state management in security-critical systems and reinforces the need for continuous security testing throughout the software development lifecycle, particularly when dealing with complex authorization frameworks that manage user access to sensitive resources.