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CVE-2026-116366 Unauthenticated RCE vulnerability against ClickHouse Server

CriticalCVSS 9.5 EPSS 0.96%
Published
Updated
Exploit status
No public exploit known

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.

Affected products

ProductAffected versionsFixed in
ClickHouse >= 26.3, < 26.3.62.3-lts 26.3.62.3-lts
ClickHouse >= 26.8, < 26.8.36.3-lts 26.8.36.3-lts
ClickHouse >= 26.9, < 26.9.27.3-stable 26.9.27.3-stable
ClickHouse >= 26.10, < 26.10.3.7-stable 26.10.3.7-stable
ClickHouse Cloud >= 25.12, < 25.12.1.1713 25.12.1.1713
ClickHouse Cloud >= 26.2, < 26.2.1.835 26.2.1.835
ClickHouse Cloud >= 26.4, < 26.4.1.2704 26.4.1.2704
ClickHouse Cloud >= 26.6, < 26.6.1.2439 26.6.1.2439
ClickHouse Cloud >= 26.8, < 26.8.1.597 26.8.1.597
ClickHouse Cloud >= 26.10, < 26.10.2.84 26.10.2.84
debian/clickhouse(Debian:12) All versions No fix listed
debian/clickhouse(Debian:12) = 18.16.1+ds-7.3 No fix listed
debian/clickhouse(Debian:12) = 18.16.1+ds-7.4 No fix listed
ubuntu/clickhouse(Ubuntu:24.04) All versions No fix listed

References