CVE-2026-7557: Progress Marklogic Server

Critical severity, CVSS 9.1. EPSS: 0.5% chance of exploitation in the next 30 days.

An improper verification of cryptographic signature vulnerability in the SAML authentication module of Progress MarkLogic Server before 11.3.6 and 12.0.3 allows an unauthenticated remote attacker to bypass authentication and impersonate any user, including administrators. This vulnerability affects deployments with SAML single sign-on enabled.

Affected products

• Progress Marklogic Server: before 11.3.6 (fixed in 11.3.6); from 12.0.0, before 12.0.3 (fixed in 12.0.3)

Published 2026-08-05. Last modified 2026-09-03.