Missing state in Nextcloud Server prior to 14.0.0 would not enforce the use of a second factor at login if the the provider of the second factor failed to load.
{ "versions": [ { "introduced": "0" }, { "fixed": "14.0.0" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-16465.json"