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.
Published: 2026-08-05
Score: 9.1 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

If SAML single sign-on is not required, disable it and use local or LDAP authentication until the update can be applied. Restrict the SAML callback endpoint to known identity-provider networks and monitor authentication logs for anomalous SAML logins.

Tracking

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Advisories

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History

Wed, 05 Aug 2026 16:15:00 +0000

Type Values Removed Values Added
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.
Title SAML authentication bypass in Progress MarkLogic Server
Weaknesses CWE-347
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: ProgressSoftware

Published:

Updated: 2026-08-05T15:33:05.872Z

Reserved: 2026-04-30T19:27:17.815Z

Link: CVE-2026-7557

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T17:45:16Z

Weaknesses
  • CWE-347

    Improper Verification of Cryptographic Signature