Critical severity · published Oct 22, 2026
CVE-2026-83938
Azure Kubernetes Configuration Service Elevation of Privilege Vulnerability
New
10.0
CVSS
0.7%
EPSS
No
On KEV
Description
Missing authentication for critical function in Azure Kubernetes Configuration Service allows an unauthorized attacker to elevate privileges over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AK
Azure Kubernetes Configuration Service · Microsoft
All versions, or not specified · source: vendor
Affected product
AK
Azure Kubernetes Configuration Service
Microsoft