strimzi-cluster-operator: Cross-namespace privilege escalation via Kafka.spec.entityOperator.watchedNamespace in Strimzi

When the Strimzi cluster operator is deployed with watchAnyNamespace=true or a multi-namespace list, any namespace editor can set Kafka.spec.entityOperator.userOperator.watchedNamespace or topicOperator.watchedNamespace to an arbitrary namespace. The cluster operator then creates a Role granting...