Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain an authorization flaw in certain forest-management operations. A remote attacker with forest-management privileges could exploit this flaw to create a persistent unauthorized administrator account, potentially resulting in complete unauthorized administrative control of the server.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-97505
https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026