Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 may use cleartext transport for Amazon S3 connections by default. A network-positioned attacker could intercept data or credentials transmitted through an affected connection.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-97572
https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026