Affects Microsoft Azure Kubernetes Service (widely used cloud platform); unauthenticated privilege escalation can enable widespread cluster takeover and major disruption.
CVE-2026-50516
Authentication bypass in Azure Kubernetes Service allows privilege escalation.
Is CVE-2026-50516 being exploited?
Not confirmed. CVE-2026-50516 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 0.84% probability of exploitation in the next 30 days.
How severe is CVE-2026-50516?
CVE-2026-50516 is rated Critical with a CVSS score of 9.4. 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-2026-50516?
Yes. A fix has been recorded for CVE-2026-50516. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-50516 affect?
CVE-2026-50516 affects Microsoft Azure Kubernetes Service (AKS), AKS clusters, AKS control plane/API. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-50516?
Apply vendor patch/mitigations when available, restrict AKS API access, rotate credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated network access can escalate to AKS cluster-admin/control plane, enabling full cluster compromise and workload control.
Immediate action required