CVE-2026-72508
Namespace-admin can exploit RHACM subscription operator to escalate to cluster-admin.
Is CVE-2026-72508 being exploited?
Not confirmed. CVE-2026-72508 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.48% probability of exploitation in the next 30 days.
How severe is CVE-2026-72508?
CVE-2026-72508 is rated Critical with a CVSS score of 9.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72508?
Yes. A fix has been recorded for CVE-2026-72508. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72508 affect?
CVE-2026-72508 affects Red Hat Advanced Cluster Management (RHACM) - multicloud-operators-subscription, Kubernetes/OpenShift clusters managed by RHACM. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72508?
Apply vendor patch when released; restrict tenant SA permissions and audit Subscription CRs
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
A namespace-admin can craft Subscription CRs that leverage privileged ServiceAccounts to deploy cluster-scoped resources, escalate to cluster-admin and execute arbitrary code.
Immediate action required