$ docker build -t nginx-traversal .
$ docker run -d -p 127.0.0.1:3000:80 nginx-traversal:latest

$ gixy vulnerable.conf 

==================== Results ===================

>> Problem: [alias_traversal] Path traversal via misconfigured alias.
Description: Using alias in a prefixed location that doesn't ends with directory separator could lead to path traversal vulnerability. 
Additional info: https://github.com/yandex/gixy/blob/master/docs/en/plugins/aliastraversal.md
Pseudo config:

server {
	server_name localhost;

	location /static {
		alias /var/www/app/static/;
	}
}

==================== Summary ===================
Total issues:
    Unspecified: 0
    Low: 0
    Medium: 0
    High: 1