CVE-2026-116366Critical· 9.5▾ AbyssalPoC availableAn 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.
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 52.3 · likelihood 0.2 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 2 sources. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
1.0%
1 GitHub repo · Nuclei ×1 (last check)
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.
ClickHouse >= 26.3 < 26.3.62.3-ltsClickHouse >= 26.8 < 26.8.36.3-ltsClickHouse >= 26.9 < 26.9.27.3-stableClickHouse >= 26.10 < 26.10.3.7-stableClickHouse >= 25.12 < 25.12.1.1713ClickHouse >= 26.2 < 26.2.1.835ClickHouse >= 26.4 < 26.4.1.2704ClickHouse >= 26.6 < 26.6.1.2439ClickHouse >= 26.8 < 26.8.1.597ClickHouse >= 26.10 < 26.10.2.84Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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