Exposure of Sensitive Information to an Unauthorized Actor
CFNetwork in Apple iOS before 6 does not properly identify the host portion of a URL, which allows remote attackers to obtain sensitive information by leveraging the construction of an HTTP request with an incorrect hostname derived from a malformed URL.
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.