CVE-2026-72526

CRITICAL 9.9

Multicloud-integrations: multicloud-integrations: pull-model propagation allows hub tenant to target arbitrary spoke cluster via unvalidated ocm-managed-cluster annotation

CVSS Score

9.9

EPSS Score

0.0%

EPSS Percentile

0th

A flaw was found in the multicloud-integrations component. The Application propagation controller processes the `ocm-managed-cluster` annotation from an Application Custom Resource (CR) without proper validation. A tenant with permissions to create Applications on the hub cluster can exploit this to target arbitrary managed clusters. This can force ArgoCD on the spoke clusters to synchronize attacker-controlled manifests, leading to arbitrary code execution or privilege escalation on those clusters.

CWE	CWE-441
Vendor	red hat
Product	red hat advanced cluster management for kubernetes 2.11
Published	Aug 12, 2026
Last Updated	Sep 5, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.11

All versions affected

Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.13

All versions affected

Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.14

All versions affected

Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.15

All versions affected

Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.16

All versions affected

Red Hat / Red Hat Advanced Cluster Management for Kubernetes 2.17

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗