SB20260604101 - Improper authorization in CONSUMER_GROUP_DESCRIBE API in Apache Kafka

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Main Vulnerability Database SB20260604101

SB20260604101 - Improper authorization in CONSUMER_GROUP_DESCRIBE API in Apache Kafka

Published: June 4, 2026

Security Bulletin ID SB20260604101
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Incorrect authorization (CVE-ID: CVE-2026-41115)

CWE-ID: CWE-863 - Incorrect Authorization

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to disclose sensitive group metadata.

The vulnerability exists due to improper access control in the CONSUMER_GROUP_DESCRIBE API when handling consumer group describe requests. A remote user can send a request to the API with DESCRIBE permission on the GROUP resource to disclose sensitive group metadata.

The issue stems from a discrepancy between the documented permission model and the implemented authorization check, which can lead to misconfigured ACLs.


Remediation

Install update from vendor's website.

References