In this article I’m exploring potential problems that you may encounter when using the brand new Ruby 2.6.0 due to a Net::Protocol issue. Highly recommended as it impacts anything that sends data using the HTTP protocol as well.

https://medium.com/@maciejmensfeld/exploring-a-critical-net-protocol-issue-in-ruby-2-6-0p0-and-how-it-can-lead-to-a-security-problem-58216ce6d23