4 Ruby vulnerability reports. 2 high, 2 medium. Most recent: CVE-2014-2322.

Also, the Ruby docs site[1] currently has the message listed on the site's action bar with a link to NIST site. Here's a screenshot of the Ruby docs site [2].

[1] http://ruby-doc.org/

[2] https://www.dropbox.com/s/zr197pz9l9n6w9a/Screen%20Shot%2020...