Reporting security vulnerabilities

Hello, I'm a security engineer working at Datadog. I have found what may be security vulnerabilities in this project.

Could you please enable [private vulnerability reporting](https://github.blog/security/6-security-settings-every-github-maintainer-should-enable-this-week/) on this repository so I can report it privately?

I tried emailing the contact address in the gliderlabs github profile but it bounced.

Start with the private vulnerability reporting guidance linked in the issue and inspect this repository's GitHub security settings. Done means private vulnerability reporting is enabled so the reporter can submit the suspected vulnerabilities without using the bounced email address.

Written by the indexing model from the issue text.