CVE-2026-72508 Privilege escalation in Red Hat Advanced Cluster Management for Kubernetes 2.11
Namespace admins can escalate privileges and execute arbitrary code by exploiting wildcard RBAC bindings in Red Hat Advanced Cluster Management.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-72508?
CVE-2026-72508 is a critical vulnerability in Red Hat Advanced Cluster Management for Kubernetes 2.11, published on 12 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-250
Which versions are affected by CVE-2026-72508?
How do I fix CVE-2026-72508?
No fix has been published for CVE-2026-72508 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-72508 being exploited?
There is no known exploitation of CVE-2026-72508 in the wild and no public exploit code.
Sources
Also known as GHSA-hr6f-38vx-3c48.