CVE-2026-7557

Critical

Description

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.

SeverityCritical

CVSS9.1

Exploit probability—

Product

Progress Marklogic Server

PublishedAug 5, 2026

First seenAug 5, 2026

Weakness typeCWE-347CWE-347

How to fix

Update

progress marklogic_server11.3.6, 12.0.3 or later

Vendor advisories

community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-August-2026

Affected products

Product	Affected versions	Fixed in
progress marklogic_server	v < 11.3.6, 12.0.0 ≤ v < 12.0.3	11.3.6, 12.0.3

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