Auth bypass in Microsoft Azure Kubernetes Service

CVE-2026-56163

Missing authentication for critical function in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over a network.

Vulnerability class: Broken Authentication

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-56163?
CVE-2026-56163 is a critical-severity vulnerability in Microsoft Azure Kubernetes Service, classified under Missing Authentication for Critical Function. CVSS score: 10.0/10. Published 2026-07-24.
How severe is CVE-2026-56163?
Critical severity. CVSS v3 base score is 10.0 out of 10.