October 30, 2026

CVE Watchtower

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CVE-2026-116366NVD

Vulnerability Summary

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.
Severity Level
CRITICAL(9.5)
Published Date
Oct 30, 2026
Last Modified
Oct 30, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
Data Pending
Root Weakness (CWE)
CWE-190: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v4.0 Base Metrics — Score 9.5 (CRITICAL)
Attack VectorNetwork
Attack ComplexityHigh
Attack RequirementsNone
Privileges RequiredNone
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)High
Integrity (Subsequent System)High
Availability (Subsequent System)High

Affected & Patched Versions

Affected Versions
  • ClickHouse ClickHouse >= 26.3 and < 26.3.62.3-lts
  • ClickHouse ClickHouse >= 26.8 and < 26.8.36.3-lts
  • ClickHouse ClickHouse >= 26.9 and < 26.9.27.3-stable
  • ClickHouse ClickHouse >= 26.10 and < 26.10.3.7-stable
Patched Versions
  • ClickHouse ClickHouse 26.3.62.3-lts
  • ClickHouse ClickHouse 26.8.36.3-lts
  • ClickHouse ClickHouse 26.9.27.3-stable
  • ClickHouse ClickHouse 26.10.3.7-stable
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🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References