An issue in Hugo Leisink Hiawatha v.12.1 and before allows a remote attacker to execute arbitrary code via a crafted requestReferenceshttps://www.rfc-editor.org/rfc/rfc9112.html#section-6.3https://www.rfc-editor.org/rfc/rfc2616https://www.rfc-editor.org/rfc/rfc2616.html#section-4.4https://fenrisk.com/hiawatha-http-smuggling
