macaron before 1.3.7 has an open redirect in the static handler, as demonstrated by the http://127.0.0.1:4000//example.com/ URL.
{ "versions": [ { "introduced": "0" }, { "fixed": "1.3.7" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12666.json"
[ { "events": [ { "introduced": "0" }, { "last_affected": "32" } ] } ]