What is CVE-2026-41115?

CVE-2026-41115 is a medium-severity vulnerability in Apache Kafka, classified under Improper Authorization. CVSS score: 4.3/10. Published 2026-06-02.

How severe is CVE-2026-41115?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Apache Kafka

CVE-2026-41115

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 i…

EPSS: 0.001 (25.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Apache Kafka
Apache Software Foundation Kafka — versions 4.0.0

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

security@apache.org (vendor-advisory, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-41115?: CVE-2026-41115 is a medium-severity vulnerability in Apache Kafka, classified under Improper Authorization. CVSS score: 4.3/10. Published 2026-06-02.
How severe is CVE-2026-41115?: Medium severity. CVSS v3 base score is 4.3 out of 10.