Exposure of Sensitive Information to an Unauthorized Actor
Apple iOS before 9.2, OS X before 10.11.2, and tvOS before 9.1 improperly validate keychain item ACLs, which allows attackers to obtain access to keychain items via a crafted app.
CWE-200 - Information Exposure
An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.