beforeupstreamconnection in AuthPlugin in http/proxy/auth.py in proxy.py before 2.3.1 accepts incorrect Proxy-Authorization header data because of a boolean confusion (and versus or).
{ "versions": [ { "introduced": "0" }, { "fixed": "2.3.1" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3116.json"