The issue was addressed by adding additional logic. This issue is fixed in Safari 18.3, iOS 18.3 and iPadOS 18.3, macOS Sequoia 15.3. Visiting a malicious website may lead to address bar spoofing.
https://support.apple.com/en-us/122074
https://support.apple.com/en-us/122068
https://support.apple.com/en-us/122066
https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-3638
http://seclists.org/fulldisclosure/2025/Jan/20