Description
A flaw was found in the multicloud-operators-subscription component of Red Hat Advanced Cluster Management (RHACM). This vulnerability allows a namespace-admin tenant to perform a confused-deputy attack by creating Subscription Custom Resources (CRs) that leverage a highly privileged ServiceAccount (SA). This enables the tenant to deploy arbitrary cluster-scoped resources, leading to privilege escalation and potential arbitrary code execution across the cluster.
Published: 2026-08-12
Score: 9.9 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

To mitigate this issue, Red Hat Advanced Cluster Management for Kubernetes administrators should configure the application-manager addon to use the least-privilege RBAC variant. This involves applying the addon/manifests/permission/role.yaml configuration, which restricts the permissions granted to the application-manager ServiceAccount. Consult Red Hat documentation for specific instructions on how to apply custom RBAC configurations for RHACM addons. Applying this change may require a restart or reload of the affected components to take effect.

Tracking

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Advisories

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History

Thu, 13 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Thu, 13 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Thu, 13 Aug 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat advanced Cluster Management For Kubernetes
Vendors & Products Redhat advanced Cluster Management For Kubernetes

Wed, 12 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in the multicloud-operators-subscription component of Red Hat Advanced Cluster Management (RHACM). This vulnerability allows a namespace-admin tenant to perform a confused-deputy attack by creating Subscription Custom Resources (CRs) that leverage a highly privileged ServiceAccount (SA). This enables the tenant to deploy arbitrary cluster-scoped resources, leading to privilege escalation and potential arbitrary code execution across the cluster.
Title Multicloud-operators-subscription: multicloud-operators-subscription: hub and spoke serviceaccounts bound to wildcard rbac (*/*/*)
First Time appeared Redhat
Redhat acm
Weaknesses CWE-250
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'}


Subscriptions

Redhat Acm Advanced Cluster Management For Kubernetes
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-13T14:16:11.777Z

Reserved: 2026-08-11T17:40:07.962Z

Link: CVE-2026-72508

cve-icon Vulnrichment

Updated: 2026-08-13T14:16:08.720Z

cve-icon NVD

Status : Received

Published: 2026-08-12T20:17:49.650

Modified: 2026-08-13T15:20:02.697

Link: CVE-2026-72508

cve-icon Redhat

Severity : Important

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

Links: CVE-2026-72508 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T10:15:07Z

Weaknesses
  • CWE-250

    Execution with Unnecessary Privileges