Multicloud-operators-subscription: multicloud-operators-subscription: hub and spoke serviceaccounts bound to wildcard rbac (*/*/*)
Summary
| CVE | CVE-2026-72508 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-12 20:17:49 UTC |
| Updated | 2026-08-13 15:20:02 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 9.9 CRITICAL from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Problem Types: CWE-250 | CWE-250 Execution with Unnecessary Privileges
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 9.9 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 9.9 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat Advanced Cluster Management For Kubernetes 2 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/security/cve/CVE-2026-72508 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-08-11T00:00:00.000Z | Reported to Red Hat. |
| CNA | 2026-08-11T00:00:00.000Z | Made public. |
Workarounds
CNA: 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.