CVE-2026-33105
This vulnerability allows an attacker to gain full administrative privileges on a Microsoft Azure Kubernetes Service cluster without authentication. The flaw lies in improper authorization checks, letting unauthorized users act as cluster administrators. It can be used to compromise the entire cluster.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
Microsoft Azure Kubernetes Service (AKS) users, particularly those who have not applied any vendor patches or updates.
Real-world impact
An attacker could take complete control of the Kubernetes cluster, read or modify any data, and disrupt services.
Why this severity
The CVSS score of 10 reflects that the vulnerability can be exploited over the network with no authentication, and it provides the attacker with full confidentiality, integrity, and availability control.
What to do about it
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
No fix documented in sources
Timeline
- Apr 3, 2026 · Apr 3, 2026PublishedDisclosed and added to the National Vulnerability Database.
- Jul 24, 2026 · 11d agoAdvisory updatedThe NVD record was last revised.
How it’s attacked
References & advisories
- msrc.microsoft.com/update-guide/vulnerability/…vendor advisory