CVE-2026-57511 SuperPlane < 0.30.0 SMTP Header Injection via Webhook Event Title

SuperPlane before 0.30.0 contains an SMTP header injection vulnerability that allows unauthenticated attackers to inject arbitrary SMTP headers by including CRLF sequences in the event payload title field delivered via webhook. Attackers can manipulate the unsanitized title field passed to the SM...