User enumeration in Nagvis' Checkmk MultisiteAuth before version 1.9.48 allows an unauthenticated attacker to enumerate Checkmk usernames.
{ "versions": [ { "introduced": "0" }, { "fixed": "1.9.48" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39665.json"