Advisories for Gem/Rack-Cors package

rack-cors (aka Rack CORS Middleware) 2.0.1 has 0666 permissions for the .rb files.

An issue was discovered in the rack-cors (aka Rack CORS Middleware) gem for Ruby. It allows directory traversal through .. to access private resources because resource matching does not ensure that pathnames are in a canonical format.

Missing anchor in generated regex for rack-cors allows a malicious third-party site to perform CORS requests. If the configuration were intended to allow only the trusted example.com domain name and not the malicious example.net domain name, then example.com.example.net (as well as example.com-example.net) would be inadvertently allowed.