In blynk-server in Blynk before 0.39.7, Directory Traversal exists via a ../ in a URI that has /static or /static/js at the beginning, as demonstrated by reading the /etc/passwd file.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-17785.json"
[ { "events": [ { "introduced": "0" }, { "fixed": "0.39.7" } ] } ]