Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 can evaluate user-controlled values supplied to certain higher-order XQuery functions in an elevated security context, which could result in privilege escalation beyond the attacker's granted permissions.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-97516
https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026