# CVE-2026-85957: Progress MarkLogic Server XXE injection in SAML parser

Source: https://junglewise.ai/threats/cve-2026-85957-affected-progress-marklogic-server-11-x-releases-before-11-3-7  
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-2026-85957 · Severity: high · CVSS 7.5 · Published 2026-10-12

Progress MarkLogic Server, a NoSQL database platform used to manage structured and unstructured data, contains a SAML authentication parser that improperly processes external XML entities. An attacker with network access to the SAML endpoint can exploit this to read sensitive files from the server or trigger requests to internal systems, leading to information disclosure or unauthorized network access.

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

## Quick answers

**Is CVE-2026-85957 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-85957 being exploited in the wild.

**How severe is CVE-2026-85957?** High severity, with a CVSS score of 7.5, published 12 October 2026.

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

**Is there a fix for CVE-2026-85957?** Yes: fixed in MarkLogic Server 11.3.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-85957 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-85957?** 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

## Technical details

The vulnerability is an XXE (XML External Entity) injection flaw in the SAML parser configuration used by MarkLogic Server. The parser is not properly configured to disable external DTD and entity processing, allowing an attacker to craft a malicious SAML response that references external entities. This can be exploited remotely without authentication by submitting a crafted SAML assertion, enabling information disclosure or server-side request forgery (SSRF).

## Affected products

- Progress MarkLogic Server 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)