ntfy before 2.22.0 allows SSRF because of an unanchored regular expression.Referenceshttp://ntfy.comhttp://ntfysh.comhttps://gist.github.com/MightyNawaf/5d41d6e8ead16e217f86b016002ecae5https://github.com/binwiederhier/ntfy/releases/tag/v2.22.0