Insertion of Sensitive Information into Log File
A potential logging of the "firestore" key via logging within "nodejs-firestore" exists - Developers who were logging objects through this._settings would be logging the "firestore" key as well potentially exposing it to anyone with logs read access. This issue affects @google-cloud/firestore prior to version 6.1.0.
CWE-532 - Insertion of Sensitive Information into Log File
It's quite common for applications to save logs. For example, whenever a user requests a resource from a particular website, the web server writes information about the request to a log file. These files are helpful for identifying abnormal system activity, bugs, and evaluating the security controls of the application. Security of log files is critical for the overall security of the application and its confidential resources. An application that lacks appropriate logging levels can expose sensitive user data and system information stored on the log files to malicious users. This info can be exploited to compromise your system.