CVE-2026-64755 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. 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 from inadequate state management within the iOS and iPadOS operating systems. The issue stems from how the system handles application permissions and user data access controls, creating potential pathways for unauthorized information disclosure. According to industry standards such as CWE-284, this falls under improper access control mechanisms where applications may bypass intended security boundaries through flawed state tracking implementations. The vulnerability specifically affects the authorization framework's ability to maintain consistent security contexts across application states, allowing malicious or poorly designed applications to exploit temporal inconsistencies in permission enforcement.
The technical implementation flaw manifests when applications transition between foreground and background states while maintaining access to sensitive user data. This occurs due to insufficient validation of authorization tokens and session states during application lifecycle events. When an app moves to the background or undergoes state changes, the system's authorization checks may not properly revalidate the application's credentials, potentially leaving sensitive data accessible to unauthorized processes. The underlying architecture fails to enforce proper state transitions that would normally trigger fresh authorization checks, creating a window where previously granted permissions remain active beyond their intended scope.
The operational impact of this vulnerability extends beyond simple data exposure risks to encompass potential privacy violations and information leakage across multiple user contexts. Attackers could leverage this flaw to access personal communications, financial data, health records, or other sensitive information that applications normally should not be able to retrieve. The vulnerability particularly affects scenarios where users switch between applications rapidly or where background processes maintain elevated privileges longer than intended. This creates opportunities for data exfiltration through malicious applications or compromised apps that exploit the authorization gap during state transitions.
Security professionals should implement comprehensive monitoring solutions to detect unauthorized access patterns and anomalous application behavior that might indicate exploitation of this vulnerability. The fix in iOS 26.6 and iPadOS 26.6 addresses the core issue by implementing stricter state validation mechanisms and enhanced session management protocols. Organizations must ensure immediate deployment of these updates across all affected devices while conducting thorough security assessments to identify any potential exploitation attempts. Additionally, system administrators should review application permissions and implement least-privilege principles to minimize the impact if the vulnerability were to be exploited despite the fix. The remediation aligns with ATT&CK framework techniques related to privilege escalation and credential access, emphasizing the importance of proper authorization state management in preventing unauthorized data access across mobile platforms.