Denial of Service in @commercial/subtext

Summary

Version 5.1.1 of `@commercial/subtext` is vulnerable to Denial of Service. The Content-Encoding HTTP header parser has a vulnerability which will cause the function to throw a system error if the header contains some invalid values. Because hapi rethrows system errors (as opposed to catching expected application errors), the error is thrown all the way up the stack. If no unhandled exception handler is available, the application will exist, allowing an attacker to shut down services. ## Recommendation Upgrade to version 5.1.2 or later.