What is CVE-2026-85957?

CVE-2026-85957 is a high-severity vulnerability in Progress Software Corporation Marklogic Server, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2026-10-12.

How severe is CVE-2026-85957?

High severity. CVSS v3 base score is 7.5 out of 10.

XXE in Progress Software Corporation Marklogic Server

CVE-2026-85957

Affected Progress MarkLogic Server 11.x releases before 11.3.7 use a SAML parser configuration that can process external DTDs or entities, which could result in unintended network access or information disclosure.

Vulnerability class: XXE (XML External Entity)

Published 2026-10-12.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Progress Software Corporation Marklogic Server

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-Oct… (vendor-advisory)

Frequently asked questions

What is CVE-2026-85957?: CVE-2026-85957 is a high-severity vulnerability in Progress Software Corporation Marklogic Server, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2026-10-12.
How severe is CVE-2026-85957?: High severity. CVSS v3 base score is 7.5 out of 10.