Delinea Secret Server before 11.7.000001 allows attackers to bypass authentication via the SOAP API in SecretServer/webservices/SSWebService.asmx. This is related to a hardcoded key, the use of the integer 2 for the Admin user, and removal of the oauthExpirationId attribute.
https://trust.delinea.com/?tcuUid=17aaf4ef-ada9-46d5-bf97-abd3b07daae3
https://docs.delinea.com/online-help/secret-server/release-notes/ss-rn-11-7-000001.htm