CVE-2026-28681

CVE-2026-28681 affects Internet Routing Registry daemon (IRRd) versions 4.4.0–4.4.5 and 4.5.0–4.5.1. The flaw is a host header injection in web UI password reset/account creation flows: an attacker can manipulate the HTTP Host header, causing the confirmation link in the email to point to an atta...

CVE-2026-28681 IRRd: web UI host header injection allows password reset poisoning via attacker-controlled email links

Internet Routing Registry daemon version 4 is an IRR database server, processing IRR objects in the RPSL format. From version 4.4.0 to before version 4.4.5 and from version 4.5.0 to before version 4.5.1, an attacker can manipulate the HTTP Host header on a password reset or account creation...