CVE-2026-65361 in macOS
Summary
by MITRE • 09/15/2026
This issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data.
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Analysis
by VulDB Data Team • 09/15/2026
The vulnerability described involves a failure in the operating system's enforcement of application sandboxing and privacy boundaries, specifically within Apple's macOS ecosystem. This flaw allows an unauthorized or maliciously crafted application to bypass standard permission checks and gain read access to sensitive user data that should remain isolated from third-party software. The core technical issue stems from insufficient validation logic during runtime privilege escalation or resource access requests, where the system fails to correctly verify whether the requesting process has legitimate authorization for the specific data scope it is attempting to reach. This represents a classic violation of the principle of least privilege and proper separation of duties between user-level applications and protected system resources.
From an industry standard perspective, this vulnerability aligns with CWE-200: Information Exposure, where security-relevant information is disclosed to an actor that is not explicitly authorized to have access to it. It also closely maps to the MITRE ATT&CK technique T1530: Data from Local System, which describes adversaries copying data from local system drives or directories for exfiltration. The flaw essentially creates a pathway where malware or rogue applications can harvest personal files, documents, photos, and other private user content without triggering standard security alerts or requiring explicit user consent through the typical permission dialogs.
The operational impact of this vulnerability is significant as it compromises user privacy and data confidentiality at the OS level. An attacker who successfully exploits this flaw could exfiltrate sensitive information such as financial records, personal communications, authentication credentials stored in keychains, or proprietary business documents. This undermines trust in the macOS platform's security model and can lead to severe consequences including identity theft, corporate espionage, and regulatory non-compliance for organizations relying on these devices for secure operations. The lack of immediate detection mechanisms means that such data access could occur silently over extended periods before being discovered by users or security teams.
Mitigation strategies primarily involve the deployment of the provided software updates which address this issue with improved checks. Administrators should ensure that all macOS endpoints are updated to at least macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 as specified in the vendor advisory. These patches likely introduce stricter validation routines for file system access requests and enhance sandbox enforcement mechanisms to prevent unauthorized data retrieval. In addition to patching, organizations should enforce strict application whitelisting policies and monitor for unusual patterns of file system activity that may indicate exploitation attempts before updates can be applied. Regular security audits and endpoint detection and response (EDR) solutions configured to flag anomalous access to sensitive directories are recommended as complementary controls to reduce the risk window associated with such vulnerabilities.