npm-user-validate is a small but useful library dedicated to validating npm usernames, crucial for developers working with npm packages and user authentication within the npm ecosystem. The shift from version 0.1.4 to 0.1.5 represents a minor update, but understanding the versions helps developers maintain stability and utilize the latest bug fixes or improvements. Both versions share a consistent foundation: they provide user validation functionalities, using the 'tap' module for development dependencies, and released under the BSD-2-Clause license, ensuring open-source compatibility. The repository URL remains constant, indicating that both versions are managed within the same GitHub project.
The key difference between the two lies in their release dates. Version 0.1.5 was released on June 20, 2016, a few days after version 0.1.4 on June 16, 2016. Developers should consider this when selecting a version. While the specifics of code changes between these versions aren't explicitly detailed, the later release date of 0.1.5 suggests that it may contain bug fixes, performance enhancements, or minor feature refinements not present in version 0.1.4. Given its function and small version upgrades, it's useful for small validation cases. For projects requiring robust user input validation for npm-related actions, using npm-user-validate is worth the investment.
All the vulnerabilities related to the version 0.1.5 of the package
Regular expression denial of service in npm-user-validate
This affects the package npm-user-validate before 1.0.1. The regex that validates user emails took exponentially longer to process long input strings beginning with @ characters.
Regular Expression Denial of Service in npm-user-validate
npm-user-validate before version 1.0.1 is vulnerable to a Regular Expression Denial of Service (REDos). The regex that validates user emails took exponentially longer to process long input strings beginning with @ characters.
The issue affects the email function. If you use this function to process arbitrary user input with no character limit the application may be susceptible to Denial of Service.
The issue is patched in version 1.0.1 by improving the regular expression used and also enforcing a 254 character limit.
Restrict the character length to a reasonable degree before passing a value to .emal(); Also, consider doing a more rigorous sanitizing/validation beforehand.
