Leakage of sensitive data in exception message

• Rule ID: javascript_lang_exception
• Languages: javascript
• Source: exception.yml

Description

Leaking sensitive data to an exception is a common cause of data leaks and can lead to data breaches. This rule looks for instances of sensitive data sent to exceptions.

Remediations

❌ Avoid using sensitive data in exception messages:

throw new CustomError(`Error with ${user.email}`)

✅ If you need to identify a user, ensure to use their unique identifier instead of their personal identifiable information:

throw new CustomError(`Error with ${user.uuid}`)

Associated CWE

• CWE-210: Self-generated Error Message Containing Sensitive Information

Configuration

To skip this rule during a scan, use the following flag

bearer scan /path/to/your-project/ --skip-rule=javascript_lang_exception

To run only this rule during a scan, use the following flag

bearer scan /path/to/your-project/ --only-rule=javascript_lang_exception