CVE-2026-7557 — CRITICAL (9.1)

Vulnerability 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.

CVSS Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-347

References

https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulle

FAQ

What is CVE-2026-7557?

CVE-2026-7557 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 b...

How severe is CVE-2026-7557?

CVE-2026-7557 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-7557?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.