Description

A logic issue was addressed with improved checks. This issue is fixed in iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. An app may be able to leak sensitive user information.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.0",
  "pubDate": "2026-08-17T22:17:24.850Z",
  "pubdate": "2026-08-17T22:17:24.850Z",
  "executiveSummary": "An information disclosure vulnerability exists in iOS 26.6.1, iPadOS 26.6.1, and macOS Tahoe 26.6.2 due to a logic issue involving insufficient input or state validation checks.\nThe primary impact of this vulnerability is the potential exposure of sensitive user information to an unauthorized third-party application executing on the target device.\nThis security flaw affects Apple's iOS, iPadOS, and macOS Tahoe platforms across specified versions.\nRisk implications include unauthorized access to private user data, breach of application sandbox boundaries, and potential privacy violations depending on the nature of the leaked information.\nAttacker capabilities are constrained to scenarios where a malicious application is successfully installed and executed on the victim's device, leveraging the logic flaw to bypass security boundaries.\nExploitation requirements include the prior installation of a malicious application capable of interacting with the vulnerable operating system components and triggering the flawed logic mechanism.",
  "technicalDetails": "The vulnerability stems from a fundamental logic issue residing within system-level validation routines, where inadequate checks allow unauthorized data access paths under specific operational states.\nThe root cause is characterized by missing or insufficient validation of boundary conditions and access control checks within the affected component, enabling an app to request and retrieve data outside its intended authorization scope.\nThe vulnerable components are native system modules handling inter-process communication or data sharing within iOS 26.6.1, iPadOS 26.6.1, and macOS Tahoe 26.6.2.\nExploitation occurs through programmatic interaction with the affected system service or API, where an unprivileged malicious application sends specifically crafted requests designed to bypass the insufficient logic checks.\nDuring the attack flow, the malicious application initiates an API call or IPC message that exploits the flawed validation logic, tricking the operating system into returning sensitive user information that should otherwise be restricted.\nAuthentication and privilege requirements are minimal from an attacker perspective, as the attack can be executed locally by a standard, unprivileged application running within the user space without requiring elevated root or administrator privileges.\nNetwork exposure is not required, as this is a local privilege escalation and information leakage vector confined to the local operating system environment.\nUpon successful exploitation, the payload behavior involves capturing the leaked sensitive data and exfiltrating it or utilizing it within the malicious application context to facilitate subsequent unauthorized activities.\nPost-exploitation impact includes the persistent compromise of user privacy through the unauthorized harvesting of sensitive data stored or processed by the operating system."
}