CVE-2026-41115— Apache Kafka: Improper Authorization in CONSUMER_GROUP_DESCRIBE API

Apache Kafka: Improper Authorization in CONSUMER_GROUP_DESCRIBE API

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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授权机制不恰当

Apache Kafka 安全漏洞

Apache Kafka是美国阿帕奇（Apache）基金会的一套开源的分布式流媒体平台。该平台能够获取实时数据，用于构建对数据流的变化进行实时反应的应用程序。 Apache Kafka存在安全漏洞，该漏洞源于CONSUMER_GROUP_DESCRIBE API验证了GROUP资源上的DESCRIBE操作而非文档中的READ操作，可能导致访问控制列表配置错误和意外安全态势。

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