---
id: CVE-2026-85976
title: >-
  Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before
  11.3.7 do not sufficiently sanitize input used by the Query Console
  file-exploration endpoint, which could allow HTTP response splitting and
  unintended client…
summary: >-
  Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before
  11.3.7 do not sufficiently sanitize input used by the Query Console
  file-exploration endpoint, which could allow HTTP response splitting and
  unintended client…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-113
vendor: Progress Software Corporation
product: MarkLogic Server
affected:
  - marklogic_server >= 11.0.0 < 11.3.7
  - marklogic_server >= 12.0.0 < 12.1.0
published: '2026-10-12'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:19:28.503'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85976'
references:
  - url: >-
      https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026
    label: security@progress.com
tags:
  - nvd
  - cve.org
epss: 0.00139
epssPercentile: 0.0327
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T17:01:43.482583Z'
ingestedAt: '2026-10-12T18:00:08.226Z'
---

## Overview

Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 do not sufficiently sanitize input used by the Query Console file-exploration endpoint, which could allow HTTP response splitting and unintended client-side response handling.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.