CVE-2026-81349: Microsoft Azure Hdinsight

High severity, CVSS 7.2. EPSS: 1% chance of exploitation in the next 30 days.

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 products

• Microsoft Azure Hdinsight: before 5.1 (fixed in 5.1)

Published 2026-09-08. Last modified 2026-09-23.