An issue was discovered in Hyland OnBase 16.0.2.83 and below 17.0.2.109 and below 18.0.0.37 and below 19.8.16.1000 and below and 20.3.10.1000 and below. It allows remote attackers to cause a denial of service (outage of connection-request processing) via a long user ID which triggers an exception and a large log entry.