CVE-2026-64711 in iOS
Summary
by MITRE • 07/28/2026
This issue was addressed with additional entitlement checks. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to leak sensitive user information.
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Analysis
by VulDB Data Team • 07/28/2026
This vulnerability represents a critical information disclosure flaw that was resolved through enhanced entitlement verification mechanisms. The issue affected multiple Apple operating systems including iOS 26.6 and iPadOS 26.6, as well as macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. The vulnerability stemmed from insufficient access controls that allowed applications to potentially access sensitive user data beyond their designated permissions. This type of flaw falls under the CWE-284 access control weakness category, specifically addressing improper access control implementations that enable unauthorized data exposure.
The technical implementation of this vulnerability likely involved a failure in the entitlement checking system where applications could bypass normal security boundaries to access protected user information. This represents a breakdown in the operating system's security model where proper privilege separation was not maintained between different application contexts. The flaw would have enabled malicious or poorly designed applications to exploit system interfaces that should have been restricted to authorized processes only.
The operational impact of this vulnerability extends beyond simple data leakage to encompass potential privacy violations and user data compromise across all affected platforms. Attackers could leverage this weakness to extract sensitive information including personal data, communications, location details, or other confidential user content that should remain protected by the system's security model. The vulnerability specifically targeted the entitlement verification process which is fundamental to maintaining proper application sandboxing and user privacy protections.
Mitigation strategies for this vulnerability focus on the enhanced entitlement checks that were implemented in the patched versions of Apple's operating systems. System administrators should ensure all affected devices are updated to the latest available versions immediately, as these updates contain the necessary security patches to prevent unauthorized information access. The fix likely involved strengthening the kernel-level entitlement verification mechanisms and implementing more rigorous access control validation before allowing applications to access sensitive system resources. This aligns with defensive cybersecurity practices that emphasize principle of least privilege and proper access control enforcement.
The resolution demonstrates Apple's ongoing commitment to addressing security vulnerabilities through systematic patching and improved security controls. The fix addresses core security architecture issues that could have enabled persistent information leakage attacks, reinforcing the importance of maintaining robust entitlement verification systems in operating system design. This vulnerability highlights the critical nature of access control mechanisms and their role in protecting user privacy across mobile and desktop computing environments.
References to industry standards show this vulnerability relates to CWE-284 for improper access control and aligns with ATT&CK technique T1059 for privilege escalation through system interfaces. The remediation approach follows established security practices for strengthening access controls and entitlement validation mechanisms that are essential components of secure operating system design and implementation.