CVE-2022-44011: Clickhouse

Medium severity, CVSS 6.5. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in ClickHouse before 22.9.1.2603. An authenticated user (with the ability to load data) could cause a heap buffer overflow and crash the server by inserting a malformed CapnProto object. The fixed versions are 22.9.1.2603, 22.8.2.11, 22.7.4.16, 22.6.6.16, and 22.3.12.19.

Affected products

• Clickhouse Clickhouse: before 22.3.12.19 (fixed in 22.3.12.19); from 22.6, before 22.6.6.16 (fixed in 22.6.6.16); from 22.7, before 22.7.4.16 (fixed in 22.7.4.16); from 22.8, before 22.8.2.11 (fixed in 22.8.2.11); from 22.9, before 22.9.1.2603 (fixed in 22.9.1.2603)

Published 2023-11-23. Last modified 2026-06-17.