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Kubernetes CVE-2026-56163

| EUVDEUVD-2026-48603 CRITICAL
Missing Authentication for Critical Function (CWE-306)
2026-07-24 microsoft GHSA-2j44-cf99-2fgr
10.0
CVSS 3.1 · Vendor: microsoft
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Severity by source

Vendor (microsoft) PRIMARY
10.0 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Primary rating from Vendor (microsoft) · only source for this CVE.

CVSS VectorVendor: microsoft

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 26, 2026 - 11:47 vuln.today
CVE Published
Jul 24, 2026 - 14:36 cve.org
CRITICAL 10.0

DescriptionCVE.org

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

AnalysisAI

Complete cluster compromise via missing authentication in Microsoft Azure Kubernetes Service allows any unauthenticated remote attacker to gain administrative privileges over the network. No user interaction is required, and the vulnerability is automatable, enabling full cluster takeover with potential cross-tenant impact. No public exploit code or active exploitation has been reported, and a vendor patch is available.

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CVE-2026-56163 vulnerability details – vuln.today

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