OS Command Injection in Azure HDInsights - CVE-2026-81349
Published: September 8, 2026
Vulnerability identifier: #VU147908
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-81349
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in Azure HDInsight Ambari. A remote administrator can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Azure HDInsights
How to mitigate CVE-2026-81349
Install updates from vendor's website.
Azure HDInsights - update to 2606012120