Vulnerability Description
Strimzi provides a way to run an Apache Kafka cluster on Kubernetes or OpenShift in various deployment configurations. In Strimzi 1.0.0 and earlier, deploying only the Topic Operator or only the User Operator through the Kafka custom resource leaves the Entity Operator ServiceAccount with RBAC permissions for both components. The excess permissions can allow access to KafkaUser custom resources and Secrets when the User Operator is absent, or access to KafkaTopic custom resources when the Topic Operator is absent. This issue is fixed in versions 1.0.1 and 1.1.0.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/strimzi/strimzi-kafka-operator/commit/b3bfeffcc30754c3e62e6f4
- https://github.com/strimzi/strimzi-kafka-operator/commit/f6c5207ba7ec89b46ce6720
- https://github.com/strimzi/strimzi-kafka-operator/pull/12844
- https://github.com/strimzi/strimzi-kafka-operator/releases/tag/1.0.1
- https://github.com/strimzi/strimzi-kafka-operator/releases/tag/1.1.0
- https://github.com/strimzi/strimzi-kafka-operator/security/advisories/GHSA-r427-
FAQ
What is CVE-2026-55226?
CVE-2026-55226 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Strimzi provides a way to run an Apache Kafka cluster on Kubernetes or OpenShift in various deployment configurations. In Strimzi 1.0.0 and earlier, deploying only the Topic Operator or only the User ...
How severe is CVE-2026-55226?
CVE-2026-55226 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55226?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.