CVE-2026-66792Privilege escalation in multicloud-operators-subscription
A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a user on a managed cluster to escalate their privileges by creating a Subscription with specific, crafted annotations. Successful exploitation grants the attacker the ability to deploy resources into any namespace with the elevated permissions of the controller's Service Account, potentially leading to unauthorized access and control over cluster resources.
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Critical vulnerability in multicloud-operators-subscription (part of RHACM/OCM). An attacker on a managed cluster can use crafted annotations to escalate privileges and deploy resources into any namespace using the controller's Service Account permissions.
Relevant roles
Severity
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HCWE-863EPSS
No EPSS score yet (CVE may be too fresh).
Technical description
A flaw was found in the multicloud-operators-subscription component. This vulnerability allows a user on a managed cluster to escalate their privileges by creating a Subscription with specific, crafted annotations. Successful exploitation grants the attacker the ability to deploy resources into any namespace with the elevated permissions of the controller's Service Account, potentially leading to unauthorized access and control over cluster resources.