Improper Authorization Affecting kafka-4.3-advanced-compat package, versions <4.3.1-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-MINIMOSLATEST-KAFKA43ADVANCEDCOMPAT-17446820
- published25 Jun 2026
- disclosed2 Jun 2026
Introduced: 2 Jun 2026
CVE-2026-41115 (opens in a new tab)How to fix?
Upgrade Minimos:latest kafka-4.3-advanced-compat to version 4.3.1-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kafka-4.3-advanced-compat package and not the kafka-4.3-advanced-compat package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
An improper authorization vulnerability has been identified in Apache Kafka.
The implementation of the CONSUMER_GROUP_DESCRIBE (69) API validates the DESCRIBE operation on the GROUP resource instead of the READ operation that documented in the official kafka documentation and the KIP-848. This discrepancy can result in misconfigured Access Control Lists (ACLs) and unintended security postures, like granting READ permission to users who should not be able to join/sync groups, or allowing users without READ permission (but with DESCRIBE permission) to access sensitive group metadata.
The correct permission for CONSUMER_GROUP_DESCRIBE API is DESCRIBE GROUP so the current implementation is correct. However, the kafka documentation as well as the KIP-848 will be updated to reflect the correct permission. We advise the Kafka users to review existing group ACLs to ensure the principle of least privilege.