CVE-2026-116366
CRITICALCVSS 9.5/10
Last modified
CVE-2026-116366 is a critical-severity vulnerability rated 9.5/10 on the CVSS scale. 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..
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
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| ClickHouse | ClickHouse | >= 26.3, < 26.3.62.3-lts; >= 26.8, < 26.8.36.3-lts; >= 26.9, < 26.9.27.3-stable; >= 26.10, < 26.10.3.7-stable |
| ClickHouse | ClickHouse Cloud | >= 25.12, < 25.12.1.1713; >= 26.2, < 26.2.1.835; >= 26.4, < 26.4.1.2704; >= 26.6, < 26.6.1.2439; >= 26.8, < 26.8.1.597; >= 26.10, < 26.10.2.84 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-116366?
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.
How severe is CVE-2026-116366?
CVE-2026-116366 has a CVSS score of 9.5/10 (CRITICAL severity).
How do I fix CVE-2026-116366?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2026-116366?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST