What is CVE-2026-81349?

CVE-2026-81349 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Azure HDInsight Ambari Elevation of Privilege Vulnerability

Which CVE IDs does CVE-2026-81349 cover?

CVE-2026-81349 covers the following CVE IDs: CVE-2026-81349. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-81349?

CVE-2026-81349 has a CVSS v3 base score of 7.2, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-81349?

CVE-2026-81349 affects 1 product, including: Azure HDInsight.

CVE-2026-81349HighCVSS 7.2

Azure HDInsight Ambari Elevation of Privilege Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

September 11, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-81349 →

📋 Description

Improper neutralization of special elements used in an os command ('os command injection') in Azure HDInsights allows an authorized attacker to elevate privileges over a network.

🎯 Affected products1

Azure HDInsight

✅ Remediation

KBRelease Notes (Security Update) — fixed build 2606012120

🔗 References (3)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81349
patchhttps://learn.microsoft.com/en-us/azure/hdinsight/hdinsight-hadoop-provision-linux-clusters
referencehttps://learn.microsoft.com/en-us/azure/hdinsight/hdinsight-release-notes