CVE-2026-27133— Strimzi All CAs from CA chain will be trusted in Kafka Connect and Kafka MirrorMaker 2 target clusters
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I. Basic Information for CVE-2026-27133
Vulnerability Information
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Vulnerability Title
Strimzi All CAs from CA chain will be trusted in Kafka Connect and Kafka MirrorMaker 2 target clusters
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
证书验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Strimzi 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Strimzi是Strimzi开源的一种允许在 Kubernetes 上以各种部署配置运行 Apache Kafka 集群的程序。 Strimzi 0.47.0版本至0.50.1之前版本存在安全漏洞，该漏洞源于信任CA链中的所有证书，可能导致接受由链中其他CA签名的服务器证书的连接。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| strimzi | strimzi-kafka-operator | >= 0.47.0, < 0.51.1 | - |
II. Public POCs for CVE-2026-27133
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IV. Related Vulnerabilities
V. Comments for CVE-2026-27133
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