CVE-2026-55225

high

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, an attacker who can create a Kafka custom resource can set Kafka.spec.entityOperator watchedNamespace to a target namespace, causing the Cluster Operator to create a Role with full Secret CRUD permissions there and bind it to the Entity Operator ServiceAccount in the attacker's namespace. The attacker can mint a token for that ServiceAccount and read or write Secrets in any target namespace where the Cluster Operator has been granted permissions, regardless of STRIMZI_NAMESPACE. This issue is fixed in versions 1.0.1 and 1.1.0.

References

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-55225.json

https://github.com/strimzi/strimzi-kafka-operator/security/advisories/GHSA-mw9r-p8xp-wx96

https://github.com/strimzi/strimzi-kafka-operator/releases/tag/1.1.0

https://github.com/strimzi/strimzi-kafka-operator/releases/tag/1.0.1

https://github.com/strimzi/strimzi-kafka-operator/pull/12844

https://github.com/strimzi/strimzi-kafka-operator/commit/f6c5207ba7ec89b46ce6720b8638d647e556a261

https://github.com/strimzi/strimzi-kafka-operator/commit/b3bfeffcc30754c3e62e6f4afd8a76942cac440d

https://bugzilla.redhat.com/show_bug.cgi?id=2490275

https://access.redhat.com/security/cve/CVE-2026-55225

https://access.redhat.com/errata/RHSA-2026:54435

Details

Source: Mitre, NVD

Published: 2026-09-15

Updated: 2026-09-16

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:A/AC:H/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 8

Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00166