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CVE-2026-55226 is an authorization flaw in Strimzi's Entity Operator RBAC configuration. When only one sub-operator is deployed—either the Topic Operator or the User Operator—the Entity Operator ServiceAccount is still granted permissions broader than required for the deployed component. As a result, the ServiceAccount retains access to Kubernetes resources associated with the non-deployed operator, violating least-privilege expectations. According to the advisory, this can expose access to KafkaUser custom resources and Secrets when the User Operator is not deployed, and to KafkaTopic custom resources when the Topic Operator is not deployed.
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