# CVE-2026-85966: Progress MarkLogic Server insufficient access restriction

Source: https://junglewise.ai/threats/cve-2026-85966-progress-marklogic-server-12-x-releases-before-12-1-0-and-11-x  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-85966 · Severity: high · CVSS 7.7 · Published 2026-10-12

Progress MarkLogic Server, a NoSQL database platform, stores security-sensitive information that is not properly restricted from authenticated users with limited management permissions. An attacker with such limited credentials could extract this sensitive data and gain unauthorized access to protected resources within the database and systems it guards.

Technologies: [Progress Marklogic Server](https://junglewise.ai/threats/technologies/marklogic-server). Vendors: [Progress](https://junglewise.ai/threats/vendors/progress).

## Quick answers

**Is CVE-2026-85966 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-85966 being exploited in the wild.

**How severe is CVE-2026-85966?** High severity, with a CVSS score of 7.7, published 12 October 2026.

**Which products and versions are affected?** Progress Marklogic Server 12.x before 12.1.0, 11.x before 11.3.7.

**Is there a fix for CVE-2026-85966?** Yes: fixed in MarkLogic Server 12.1.0, 11.3.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-85966 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-85966?** 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 12.1.0, 11.3.7

## Technical details

MarkLogic Server 12.x before 12.1.0 and 11.x before 11.3.7 fail to enforce proper access controls on security-sensitive information. A remote authenticated attacker with limited management permissions can query or access this restricted data without proper authorization, potentially exposing credentials, encryption keys, or configuration details that enable compromise of downstream protected resources.

## Affected products

- Progress MarkLogic Server 12.x before 12.1.0, 11.x before 11.3.7

## Timeline

- 2026-10-12: disclosed

## References

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

## Related threats

- [Progress MarkLogic Server HTTP response splitting in Query Console](https://junglewise.ai/threats/cve-2026-85976-progress-marklogic-server-12-x-releases-before-12-1-0-and-11-x)
- [Progress MarkLogic Server cleartext S3 transport default](https://junglewise.ai/threats/cve-2026-85975-progress-marklogic-server-12-x-releases-before-12-1-0-and-11-x)
- [Progress MarkLogic Server TLS hostname validation bypass](https://junglewise.ai/threats/cve-2026-85974-progress-marklogic-server-12-x-releases-before-12-1-0-and-11-x)
- [Progress MarkLogic Server cleartext cluster-management communications](https://junglewise.ai/threats/cve-2026-85973-progress-marklogic-server-12-x-releases-before-12-1-0-may-use)
- [Progress MarkLogic Server Kerberos authentication verification bypass](https://junglewise.ai/threats/cve-2026-85972-progress-marklogic-server-12-x-releases-before-12-1-0-and-11-x)