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.

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History

Wed, 03 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:kafka:*:*:*:*:*:*:*:*
References

Tue, 02 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 02 Jun 2026 11:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache kafka
Vendors & Products Apache
Apache kafka

Tue, 02 Jun 2026 10:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Apache Kafka: Improper Authorization in CONSUMER_GROUP_DESCRIBE API
Weaknesses CWE-285
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-06-02T17:33:07.625Z

Reserved: 2026-04-17T03:09:02.257Z

Link: CVE-2026-41115

cve-icon Vulnrichment

Updated: 2026-06-02T17:33:07.625Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-02T10:16:25.107

Modified: 2026-06-03T02:04:19.880

Link: CVE-2026-41115

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-02T18:30:15Z

Weaknesses