Exposure of Sensitive Information to an Unauthorized Actor
The Ruby http gem before 0.7.3 does not verify hostnames in SSL connections, which might allow remote attackers to obtain sensitive information via a man-in-the-middle-attack.
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.