The Register is reporting that a fairly major security issue was found in Ruby, the open source programming language, "which forms the foundation of Ruby on rails"
The vulnerability was originally found by Drew Yao of Apple Product Security according to The Register
IMHO this only goes to demonstrate that we need to be vigilant in verifying the security of any system we use to build our business on. Both open source and commercial software packages can have issues. To quote the old Russian saying "trust but verify".