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VulnerabilityPublished

CVE-2026-55226: strimzi-kafka-operator · Improper Privilege Management

Affects strimzi-kafka-operatorSource CVE Database V5

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Not known to be exploited · CVSS 5.4 Medium : upgrade to 1.0.1 when convenient.

Data as of 30 Oct 2026, 20:25 UTC

CVSS 3.1 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.0.1
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 15 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade strimzi-kafka-operator and strimzi/strimzi-kafka-operator to 1.0.1.

Affected software

ProductAffectedFixed in
strimzistrimzi-kafka-operatorAffected
  • <1.0.1
Fixed in
  • 1.0.1
GitHubstrimzi/strimzi-kafka-operatorpkg:github/strimzi/strimzi-kafka-operatorOther threatsAffected
  • <1.0.1
Fixed in
  • 1.0.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Strimzi Kafka Operator to version 1.0.1 or later, as these versions contain fixes that properly restrict RBAC permissions of the Entity Operator ServiceAccount to only the deployed components. No other mitigation is required as the issue is resolved in these versions.

Description

Strimzi Kafka Operator versions prior to 1.0.1 have an improper privilege management vulnerability where the Entity Operator ServiceAccount retains RBAC permissions for both Topic Operator and User Operator components even when only one is deployed. This can lead to unauthorized access to KafkaUser custom resources and Secrets or KafkaTopic custom resources depending on which operator is absent. The issue is fixed in versions 1.0.1 and 1.1.0.

References

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