---
id: CVE-2026-85891
title: >-
  Exposure of sensitive information to an unauthorized actor in Azure HDInsight
  allows an unauthorized attacker to disclose information over a network.
summary: >-
  Exposure of sensitive information to an unauthorized actor in Azure HDInsight
  allows an unauthorized attacker to disclose information over a network.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-200
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T21:19:31.423'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85891'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85891'
    label: secure@microsoft.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-13T19:43:29.188Z'
vendor: Microsoft
product: Azure HDInsight
affected:
  - azure_hdinsight >= 1.0 < 2606012120
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-13T20:04:59.726388Z'
epss: 0.00923
epssPercentile: 0.60203
---

## Overview

Exposure of sensitive information to an unauthorized actor in Azure HDInsight allows an unauthorized attacker to disclose information over a network.

## Remediation

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