Description
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.
Published: 2026-08-12
Score: 9.9 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

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History

Wed, 12 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 12 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Critical


Wed, 12 Aug 2026 01:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Multicloud-integrations: multicloud-integrations: pull-model propagation allows hub tenant to target arbitrary spoke cluster via unvalidated ocm-managed-cluster annotation
First Time appeared Redhat
Redhat acm
Weaknesses CWE-441
CPEs cpe:/a:redhat:acm:2
Vendors & Products Redhat
Redhat acm
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-12T19:41:22.011Z

Reserved: 2026-08-11T17:40:07.967Z

Link: CVE-2026-72526

cve-icon Vulnrichment

Updated: 2026-08-12T12:38:08.270Z

cve-icon NVD

Status : Received

Published: 2026-08-12T02:16:38.200

Modified: 2026-08-12T13:17:25.827

Link: CVE-2026-72526

cve-icon Redhat

Severity : Critical

Publid Date: 2026-08-11T00:00:00Z

Links: CVE-2026-72526 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T15:30:02Z

Weaknesses
  • CWE-441

    Unintended Proxy or Intermediary ('Confused Deputy')