Critical privilege escalation in Azure Red Hat OpenShift, a widely used managed OpenShift service; exploitation could compromise cluster workloads and secrets across organizations.
CVE-2026-56160
Authorization flaw in Azure Red Hat OpenShift allows privilege escalation.
Is CVE-2026-56160 being exploited?
Not confirmed. CVE-2026-56160 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 0.58% probability of exploitation in the next 30 days.
How severe is CVE-2026-56160?
CVE-2026-56160 is rated Critical with a CVSS score of 9.1. 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-2026-56160?
Yes. A fix has been recorded for CVE-2026-56160. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-56160 affect?
CVE-2026-56160 affects Azure Red Hat OpenShift (ARO), Azure-managed OpenShift clusters, OpenShift control plane components. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-56160?
Apply vendor patch/mitigation ASAP; restrict admin API access and rotate secrets/credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attacker can escalate to cluster-admin on ARO, control workloads, access secrets, and deploy or modify containers remotely.
Immediate action required