Vulnerability Description
Strimzi provides a way to run an Apache Kafka cluster on Kubernetes or OpenShift in various deployment configurations. From 0.47.0 to before 0.50.1, when a chain consisting of multiple CA (Certificate Authority) certificates is used in the trusted certificates configuration of a Kafka Connect operand or of the target cluster in the Kafka MirrorMaker 2 operand, all of the certificates that are part of the CA chain will be trusted individually when connecting to the Apache Kafka cluster. Due to this error, the affected operand (Kafka Connect or Kafka MirrorMaker 2) might accept connections to Kafka brokers using server certificates signed by one of the other CAs in the CA chain and not just by the last CA in the chain. This issue is fixed in Strimzi 0.50.1.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Strimzi | >= 0.47.0, < 0.50.1 |
Related Weaknesses (CWE)
References
- https://github.com/strimzi/strimzi-kafka-operator/releases/tag/0.50.1ProductRelease Notes
- https://github.com/strimzi/strimzi-kafka-operator/security/advisories/GHSA-6x85-Vendor Advisory
FAQ
What is CVE-2026-27133?
CVE-2026-27133 is a vulnerability with a CVSS score of 5.9 (MEDIUM). Strimzi provides a way to run an Apache Kafka cluster on Kubernetes or OpenShift in various deployment configurations. From 0.47.0 to before 0.50.1, when a chain consisting of multiple CA (Certificate...
How severe is CVE-2026-27133?
CVE-2026-27133 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-27133?
Check the references section above for vendor advisories and patch information. Affected products include: Linuxfoundation Strimzi.