Apache DolphinScheduler user registration is vulnerable to Regular express Denial of Service (ReDoS) attacks, Apache DolphinScheduler users should upgrade to version 2.0.5 or higher.
https://github.com/advisories/GHSA-qg5x-66hp-cw5p
https://lists.apache.org/thread/hwnw7xr969sg5nv84wz75nfr2c76fl93