CVE-2024-27309
While an Apache Kafka cluster is being migrated from ZooKeeper mode to KRaft mode, in some cases…
Technology
Apache Kafka
CVSS Score
7.4 / 10.0
Affected Versions
>=3.5.0 <=3.6.1
Upstream Fix
See upstream advisory
Published
April 12, 2024
OSSeva Coverage
Fixed upstream
Description
While an Apache Kafka cluster is being migrated from ZooKeeper mode to KRaft mode, in some cases ACLs will not be correctly enforced. Two preconditions are needed to trigger the bug: 1. The administrator decides to remove an ACL 2. The resource associated with the removed ACL continues to have two or more other ACLs associated with it after the removal. When those two preconditions are met, Kafka will treat the resource as if it had only one ACL associated with it after the removal, rather than the two or more that would be correct. The incorrect condition is cleared by removing all brokers in ZK mode, or by adding a new ACL to the affected r
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