Geddy prior to version 13.0.8 contains a directory traversal vulnerability in lib/app/index.js that allows remote attackers to read arbitrary files via a ..%2f (dot dot encoded slash) in the PATH_INFO to the default URI.
View the template here CVE-2015-5688.yaml
References:
https://nvd.nist.gov/vuln/detail/CVE-2015-5688