CVE-2022-44011

An issue was discovered in ClickHouse before 22.9.1.2603. An authenticated user (with the ability...

6.5 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.70%Up 0.6 points since Nov 24, 2023

What each source reports

NVD Score used 6.5

Record: CVE-2022-44011
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-787
Updated: 2026-11-02

CVE List No score

Record: CVE-2022-44011
Updated: 2026-11-02

EUVDEUVD-2022-46974 No score

Record: EUVD-2022-46974
Updated: 2026-11-03

GitHub AdvisoriesGHSA-4xq2-q58f-2q5m 6.5

An issue was discovered in ClickHouse before 22.9.1.2603. An authenticated user (with the ability...

Record: GHSA-4xq2-q58f-2q5m
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSVDEBIAN-CVE-2022-44011 6.5

Record: DEBIAN-CVE-2022-44011
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

OSVUBUNTU-CVE-2022-44011 6.5

Record: UBUNTU-CVE-2022-44011
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSV No score

Record: CVE-2022-44011
Updated: 2026-11-02

Affected products

clickhouse

Affected packages

Affected packages
Package	Affected	Fixed
`clickhouse` Debian:12	All versions, plus listed versions 18.16.1+ds-7.318.16.1+ds-7.4	None known
`clickhouse` Ubuntu:20.04:LTS	All versions, plus listed versions 18.16.1+ds-518.16.1+ds-5ubuntu118.16.1+ds-5ubuntu218.16.1+ds-6ubuntu118.16.1+ds-718.16.1+ds-7ubuntu0.1	None known
`clickhouse` Ubuntu:24.04:LTS	All versions, plus listed versions 18.16.1+ds-7.418.16.1+ds-7.4build118.16.1+ds-7.4build2	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-44011 is a medium vulnerability (CVSS 6.5) in Clickhouse, published November 23, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.70%, the 53rd percentile. No source names a fixed version.