CVE-2026-116366

Unauthenticated RCE vulnerability against ClickHouse Server

Published Oct 30, 2026 CVSS 4.0 · 9.5 Critical EPSS < 1% KEV · Not listed
Description
An issue has been discovered in ClickHouse Server that, under certain conditions, could allow an unauthenticated user with network access to execute arbitrary code on the ClickHouse Server.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Clickhouse
Clickhouse clickhouse
Vendors & Products Clickhouse
Clickhouse clickhouse
Type Values Removed Values Added
Description An issue has been discovered in ClickHouse Server that, under certain conditions, could allow an unauthenticated user with network access to execute arbitrary code on the ClickHouse Server.
Title Unauthenticated RCE vulnerability against ClickHouse Server
Weaknesses CWE-190
References
Metrics cvssV4_0

{'score': 9.5, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ClickHouse
Published
Updated
Oct 30, 2026, 4:36 PM
Reserved
Oct 26, 2026, 7:54 AM
Status
Awaiting Analysis
Published
Oct 30, 2026, 11:17 AM
Modified
Oct 30, 2026, 7:37 PM