CVE-2026-116366

CRITICAL
INFO Priority: 0.00 BB Relevance: 79/100
Published: 2026-10-30 Modified: 2026-10-30 First seen: 2026-10-30 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
AT: None
VC: High
VI: High
VA: High

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.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
ClickHouse ClickHouse 26.3 < 26.3.62.3-lts
ClickHouse ClickHouse 26.8 < 26.8.36.3-lts
ClickHouse ClickHouse 26.9 < 26.9.27.3-stable
ClickHouse ClickHouse 26.10 < 26.10.3.7-stable

Bug Bounty Relevance

79 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.5 / 10.0 v4.0
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

EPSS — Exploitation Probability

No EPSS data available

Intelligence Sources

mitre ref →
nvd ref →