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CVE-2026-67567

Multicloud-operators-subscription: multicloud-operators-subscription: helmrelease chart applied with controller sa without gvk or namespace restriction

Published: Aug 20, 2026Updated: Aug 28, 2026 Sources: CVE List NVDCWE-441
9.9CRITICAL
NVD MITRE
EPSS Score
0.4%
Top 63.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-441

Affected Products

Red Hat
commercial·US
Red Hat Advanced Cluster Management for Kubernetes 2.11On-premSaaS Service
Cloud & SaaS / container-orchestration
Red Hat Advanced Cluster Management for Kubernetes 2.13On-premSaaS Service
Cloud & SaaS / container-orchestration
Red Hat Advanced Cluster Management for Kubernetes 2.14On-premSaaS Service
Cloud & SaaS / container-orchestration
Red Hat Advanced Cluster Management for Kubernetes 2.15On-prem
Operating Systems / linux-distro
Red Hat Advanced Cluster Management for Kubernetes 2.16On-prem
Operating Systems / linux-distro
Red Hat Advanced Cluster Management for Kubernetes 2.17On-prem
Operating Systems / linux-distro

Exploitability

Workaround Available
Is your org exposed to CVE-2026-67567?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

References

https://access.redhat.com/errata/RHSA-2026:60386
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60387
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:60388
access.redhat.com
and 5 more references View all →

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