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CVE-2026-116366 Details
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.
Metrics
CVSS 4.0 Severity and Vector Strings:
CNA: ClickHouseCVSS-B:9.5 CRITICALVector: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
CVSS 3.x Severity and Vector Strings:
No CVSS 3.x data is available for this CVE.
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 30, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Total
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://clickhouse.com/docs/resources/changelogs/security-changelog | ClickHouse | |
| https://github.com/ClickHouse/ClickHouse/blob/master/SECURITY.md | ClickHouse |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-190 | Integer Overflow or Wraparound | ClickHouse |
Affected Products
No affected product data is available for this CVE.
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 30, 2026 | CVE Modified | CISA-ADP |
| Oct 30, 2026 | CVE Modified | ClickHouse |
| Oct 30, 2026 | New CVE Received | ClickHouse |