CVE-2026-85891

High

Description

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

SeverityHigh
CVSS7.5
Exploit probability—
ProductAzure HDInsight
PublishedOct 13, 2026
First seenOct 13, 2026

How to fix

Update
  • Microsoft Azure HDInsight2606012120 or later

Affected products

ProductAffected versionsFixed in
Microsoft Azure HDInsight1.0 ≤ v < 26060121202606012120

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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