CVE-2026-116366: Unauthenticated RCE vulnerability against ClickHouse Server
Vendor fix available · Affected: ClickHouse · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 62% of scored CVEs
DescriptionCVE.org
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 products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- ClickHouse · ClickHousefrom 26.3 before 26.3.62.3-lts; from 26.8 before 26.8.36.3-lts; from 26.9 before 26.9.27.3-stable; from 26.10 before 26.10.3.7-stable
- ClickHouse · ClickHouse Cloudfrom 25.12 before 25.12.1.1713; from 26.2 before 26.2.1.835; from 26.4 before 26.4.1.2704; from 26.6 before 26.6.1.2439; from 26.8 before 26.8.1.597; from 26.10 before 26.10.2.84
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- ClickHouse Server - Brotli v1.2.0 Decoder DoS/OOB-Write · nuclei template in projectdiscovery/nuclei-templates
- Vendor
- ClickHouse
- Published
- October 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-116366 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.