---
title: "CVE-2026-85965: Progress MarkLogic Server - Memory Corruption"
description: "Progress MarkLogic Server 12.x < 12.1.0 and 11.x < 11.3.7 contain memory corruption caused by memory-safety defects in the JavaScript engine integration, letting attackers cause process failure or server instability, exploit requires no special conditions."
url: https://panop.io/threat-heartbeat/CVE-2026-85965/
---

# CVE-2026-85965 Progress MarkLogic Server - Memory Corruption

Progress MarkLogic Server 12.x < 12.1.0 and 11.x < 11.3.7 contain memory corruption caused by memory-safety defects in the JavaScript engine integration, letting attackers cause process failure or server instability, exploit requires no special conditions.

CVSS base score 8.0 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.24% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-85965)

## Details

Type

Memory Corruption

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Published

12 October 2026

Updated

15 October 2026

Weakness

[CWE-416](https://cwe.mitre.org/data/definitions/416.html)

## Vendor fix

Upgrade to 12.1.0 for 12.x releases and 11.3.7 for 11.x releases or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-85965](https://nvd.nist.gov/vuln/detail/CVE-2026-85965)
- [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)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)