CVE-2019-15024: Clickhouse

Medium severity, CVSS 6.5. EPSS: 0.9% chance of exploitation in the next 30 days.

In all versions of ClickHouse before 19.14.3, an attacker having write access to ZooKeeper and who is able to run a custom server available from the network where ClickHouse runs, can create a custom-built malicious server that will act as a ClickHouse replica and register it in ZooKeeper. When another replica will fetch data part from the malicious replica, it can force clickhouse-server to write to arbitrary path on filesystem.

Affected products

• Clickhouse Clickhouse: before 19.14.3 (fixed in 19.14.3)

Published 2019-12-30. Last modified 2026-06-17.