Vulnerability Report

CVE-2026-27133

Title: Improper trust configuration in Strimzi for Kafka Connect/MirrorMaker 2

Other

Proof Of Concept

No public PoC currently indexed for CVE-2026-27133.

CWE Category CWE-295

Published Date Feb 20, 2026

Modified Date Feb 27, 2026

Exploit Status Not Found

Score 5.9 CVSS v3.1

Exploit Probability (EPSS)

0.01%

Vulnerability Summary

CVE-2026-27133: 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.

Impacted Vendors

linuxfoundation 2

Reference Links

https://github.com/strimzi/strimzi-kafka-operator/releases/tag/0.50.1 https://github.com/strimzi/strimzi-kafka-operator/security/advisories/GHSA-6x85-j2f7-4xc5

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.9

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns