PatchTheCVECVE-2026-81349: Improper neutralization of special elements used in an os command ('os command injection') in Azure HDInsights
CVE-2026-81349 is a high-severity flaw (CVSS 7.2) affecting azure hdinsight. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.2 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 1.0% (top 37%) |
| CISA exploited list | No |
| Weakness | CWE-78 |
| Published | 2026-09-08 |
| Last modified | 2026-09-23 |
Last updated 2026-09-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-81349?
azure hdinsight: upgrade to 5.1. Exact commands for each OS are on this page.
Is CVE-2026-81349 being exploited?
CVE-2026-81349 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-81349 affect?
CVE-2026-81349 affects azure hdinsight. Severity is high (CVSS 7.2). 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.
How urgent is CVE-2026-81349?
Priority 46/100. High severity; On your watchlist