Authenticated privilege escalation via Ambari command injection
Published Sep 8, 2026 · Updated Sep 9, 2026
OS command injection in Microsoft Azure HDInsight before 2606012120 allows remote authenticated users to elevate privileges through Ambari. Microsoft has not disclosed the affected Ambari endpoint or which untrusted field reaches the operating-system command without adequate neutralization. Successful exploitation requires high-privileged access to the network-reachable Ambari interface and executes operating-system commands with elevated cluster privileges.
Summary
What happened
OS command injection in Microsoft Azure HDInsight before 2606012120 allows remote authenticated users to elevate privileges through Ambari. Microsoft has not disclosed the affected Ambari endpoint or which untrusted field reaches the operating-system command without adequate neutralization. Successful exploitation requires high-privileged access to the network-reachable Ambari interface and executes operating-system commands with elevated cluster privileges.
The record
- CVE
- CVE-2026-81349
- Published
- Sep 8, 2026
- Updated
- Sep 9, 2026
- Vendor
- Microsoft
- Product
- Azure HDInsight
- Classifications
- CWE-78, T1059, T1068
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0 <2606012120
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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