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Clickhouse CVE-2019-15024

MEDIUM
2019-12-30 browser-security@yandex-team.ru
6.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.9% exploitation probability (EPSS)

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AnalysisAI

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. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

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 include: Clickhouse. Version information: before 19.14.3.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

DescriptionNVD

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.

Threat Intelligence Overview

EPSS Score
0.9%
Top 43% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.9%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

33
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:clickhouse:clickhouse:*:*:*:*:*:*:*:*
CVE-2026-111497 CRITICAL POC
9.2 Oct 21

Remote code execution is possible in Node.js releases that bundle a vulnerable Brotli decoder: a malformed brotli-compre

CVE-2024-23689 HIGH POC
8.8 Jan 19

Exposure of sensitive information in exceptions in ClichHouse's clickhouse-r2dbc, com.clickhouse:clickhouse-jdbc, and co

CVE-2024-41436 HIGH POC
7.5 Sep 03

ClickHouse v24.3.3.102 was discovered to contain a buffer overflow via the component DB::evaluateConstantExpressionImpl.

CVE-2023-47118 CRITICAL
9.8 Dec 20

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports

CVE-2019-16535 CRITICAL
9.8 Dec 30

In all versions of ClickHouse before 19.14, an OOB read, OOB write and integer underflow in decompression algorithms can

CVE-2026-116366 CRITICAL
9.5 Oct 30

Unauthenticated remote code execution is possible against ClickHouse Server under certain conditions, with a CVSS 4.0 sc

CVE-2026-114087 CRITICAL
9.2 Oct 21

Authentication bypass in Trigger.dev self-hosted v4 deployments (npm trigger.dev <=4.5.5) allows unauthenticated attacke

CVE-2024-22412 MEDIUM POC
4.9 Mar 18

ClickHouse is an open-source column-oriented database management system. Rated medium severity (CVSS 4.9), this vulnerab

CVE-2026-93426 HIGH
8.4 Sep 17

SQL injection in the SigNoz v5 query_range API (versions 0.87.0 through 0.141.x) lets authenticated users with the Viewe

CVE-2019-16536 HIGH
8.2 May 21

Stack overflow leading to DoS can be triggered by a malicious authenticated client in Clickhouse before 19.14.3.3. Rated

CVE-2023-48704 HIGH
7.5 Dec 22

ClickHouse is an open-source column-oriented database management system that allows generating analytical data reports i

CVE-2023-48298 HIGH
7.5 Dec 21

ClickHouse® is an open-source column-oriented database management system that allows generating analytical data reports

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