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Vulnerability record · CVE-2026-55225 · published 15 September 2026

CVE-2026-55225: Improper privilege management vulnerability

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.

8.0 CVSS 3.1 High EPSS 0.30% · top 80.1% CWE-269 · Improper privilege managementCWE-441 · CWE-441 Received
8.0CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
10References
16 Sep 2026Last modified by NVD

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.

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

References

LinkTags
https://github.com/strimzi/strimzi-kafka-operator/commit/b3bfeffcc30754c3e62e6f4afd8a76942cac440d
https://github.com/strimzi/strimzi-kafka-operator/commit/f6c5207ba7ec89b46ce6720b8638d647e556a261
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-mw9r-p8xp-wx96
https://access.redhat.com/errata/RHSA-2026:54435
https://access.redhat.com/security/cve/CVE-2026-55225
https://bugzilla.redhat.com/show_bug.cgi?id=2490275
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-55225.json

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Source: NIST National Vulnerability Database (record CVE-2026-55225), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.