CVE-2026-41115
MEDIUMCVSS v3.1: 4.3 · EPSS: 0.0002 (4.4 percentile)
Source data as of:
At a glance
- Severity
- MEDIUM
- CVSS
- 4.3 v3.1 · NVD
- EPSS
- 0.0002 (4.4 percentile) · FIRST.org
- CISA KEV
- No
- Type
- Improper Authorization · NVD CWE
- Attack conditions (CVSS vector)
- NetworkNo user interaction · Source: NVD Vector
- Affected vendors
- apache
- Published
- 2026-06-02 · Modified: 2026-06-03
- References
- Jump to references (2)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
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.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Vendor advisory https://kafka.apache.org/cve-list
- Reference http://www.openwall.com/lists/oss-security/2026/06/02/5