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CVE-2026-116366
Unauthenticated RCE vulnerability against ClickHouse Server
Critical9.5EPSS 0.96%
- Published
- Updated
- Reserved
- Assigned by
- ClickHouse
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ClickHouseCNA (assigner) | 4.0 | Critical9.5 | 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 |
| NVDNVD · Awaiting Analysis | 4.0 | Critical9.5 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.96% · top 38% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.5.
Weakness
Affected products
- affected 26.3 – < 26.3.62.3-lts
- affected 26.8 – < 26.8.36.3-lts
- affected 26.9 – < 26.9.27.3-stable
- affected 26.10 – < 26.10.3.7-stable
- affected 25.12 – < 25.12.1.1713
- affected 26.2 – < 26.2.1.835
- affected 26.4 – < 26.4.1.2704
- affected 26.6 – < 26.6.1.2439
- affected 26.8 – < 26.8.1.597
- affected 26.10 – < 26.10.2.84
References (2)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-116366)Record last updated .