Exposure of Sensitive Information to an Unauthorized Actor
NSSecureTextField in AppKit in Apple Mac OS X 10.4.6 does not re-enable secure event input under certain circumstances, which could allow other applications in the window session to monitor input characters and keyboard events.
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.