The package github.com/pires/go-proxyproto before 0.6.0 are vulnerable to Denial of Service (DoS) via creating connections without the proxy protocol header.
{ "versions": [ { "introduced": "0" }, { "fixed": "0.6.0" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-23409.json"