CVE-2026-73269

criticalCVSS 9.9covered by 1 sourcefirst seen 2026-08-12

A flaw was found in the cluster-curator-controller component. A local user, by creating a ClusterCurator resource with a specific naming convention, can trigger the creation of a cluster-scoped ClusterRoleBinding. This allows the user to escalate their privileges from namespace-local access to cluster-wide control. This privilege escalation grants broad permissions, including the ability to access and manipulate secrets, manage cluster actions, and delete hosted clusters or node pools.

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Exploitation outlook

Low exploitation risk0.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalCVE-2026-73269: A flaw was found in the cluster-curator-controller component. A local user, by creating a Clus…nvd · 2026-08-12

External references

NVD record for CVE-2026-73269

CVE.org record

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