CVE-2026-67567

CRITICAL CVSS 3.1: 9.9
Updated Aug 21, 2026
Red Hat
Parameter Value
CVSS 9.9 (CRITICAL)
Type CWE-441
Vendor Red Hat
Public PoC No

A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a tenant, who has the ability to create HelmRelease custom resources (CRs), to bypass existing security controls. The system's HelmRelease controller processes Helm chart templates using its own elevated ServiceAccount privileges without proper validation.

This enables the tenant to deploy arbitrary resources across the entire cluster, leading to a significant security compromise.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products

red hat:red hat advanced cluster management for kubernetes 2