This affects the package npm-user-validate before 1.0.1. The regex that validates user emails took exponentially longer to process long input strings beginning with @ characters.
{ "versions": [ { "introduced": "0" }, { "fixed": "1.0.1" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-7754.json"