Is CVE-2026-85954 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-85954 being exploited in the wild.

How severe is CVE-2026-85954?

High severity, with a CVSS score of 8.6, published 12 October 2026.

Which products and versions are affected?

Progress Marklogic Server 11.x before 11.3.7; 12.x before 12.1.0.

Is there a fix for CVE-2026-85954?

Yes: fixed in MarkLogic Server 11.3.7, 12.1.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-85954 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-85954?

Check whether you run Progress Marklogic Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-85954: Progress MarkLogic Server privilege escalation in XQuery evaluation

CVE-2026-85954 · Severity: high · CVSS 8.6 · Published 2026-10-12

Progress MarkLogic Server is a database platform that stores and retrieves large volumes of structured and unstructured data. The vulnerability allows attackers to evaluate malicious XQuery code in an elevated security context, bypassing access controls and gaining unauthorized permissions within the database. This could lead to data theft, modification, or deletion depending on the attacker's objectives.

Technologies: Progress Marklogic Server. Vendors: Progress.

Quick answers

Is CVE-2026-85954 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-85954 being exploited in the wild.
How severe is CVE-2026-85954?: High severity, with a CVSS score of 8.6, published 12 October 2026.
Which products and versions are affected?: Progress Marklogic Server 11.x before 11.3.7; 12.x before 12.1.0.
Is there a fix for CVE-2026-85954?: Yes: fixed in MarkLogic Server 11.3.7, 12.1.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-85954 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-85954?: Check whether you run Progress Marklogic Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: MarkLogic Server 11.3.7, 12.1.0

Technical details

The vulnerability is a privilege escalation flaw in MarkLogic Server versions 11.x before 11.3.7 and 12.x before 12.1.0, where user-supplied input to certain higher-order XQuery functions is evaluated in an elevated security context without proper validation. An attacker with network access can craft malicious XQuery expressions that execute with elevated privileges, bypassing the configured access control model. A fix is available in versions 11.3.7 and 12.1.0 or later.

Affected products

Progress MarkLogic Server 11.x before 11.3.7; 12.x before 12.1.0

Timeline

2026-10-12: disclosed

References

https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026

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