# CVE-2026-85953: Progress MarkLogic Server path traversal in InfoStudio

Source: https://junglewise.ai/threats/cve-2026-85953-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-2026-85953 · Severity: high · CVSS 8.5 · Published 2026-10-12

Progress MarkLogic Server is a database platform used to manage large volumes of data. Legacy modules in MarkLogic contain flaws that allow attackers to access server files or execute operations with unintended privileges, potentially leading to data exposure or unauthorized system actions.

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

## Quick answers

**Is CVE-2026-85953 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-85953 being exploited in the wild.

**How severe is CVE-2026-85953?** High severity, with a CVSS score of 8.5, 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-2026-85953?** 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-2026-85953 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-85953?** 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

MarkLogic Server 11.x and 12.x contain privileged InfoStudio modules that fail to properly validate user-controlled file paths and user-context values, enabling path traversal and privilege escalation attacks. The vulnerability is exploitable remotely over the network without authentication requirements. An attacker can read arbitrary files or execute code under an unintended identity context.

## 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](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)