---
id: CVE-2026-85958
title: >-
  Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before
  11.3.7 contain an authentication validation weakness that could allow an
  attacker to use a token that should not be accepted by the affected server,
  which cou…
summary: >-
  Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before
  11.3.7 contain an authentication validation weakness that could allow an
  attacker to use a token that should not be accepted by the affected server,
  which cou…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-287
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: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:44.960'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85958'
references:
  - url: >-
      https://community.progress.com/s/article/Marklogic-Critical-Security-Alert-Bulletin-October-2026
    label: security@progress.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-15T18:00:43.158275Z'
epss: 0.00365
epssPercentile: 0.30214
ingestedAt: '2026-10-12T18:00:08.218Z'
---

## Overview

Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain an authentication validation weakness that could allow an attacker to use a token that should not be accepted by the affected server, which could result in unauthorized access.

## Remediation

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