What’s Vulnerable › Vulnerabilities

CVE-2026-116818: OpenPanel before 3.0.0 Unauthenticated ClickHouse SQL Injection via /live/visitors WebSocket

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-26 · updated 2026-10-27
• Weakness: CWE-89

Description

OpenPanel before 3.0.0 contains an unauthenticated ClickHouse sql injection vulnerability that allows remote attackers to inject SQL through the projectId parameter of the /live/visitors/:projectId WebSocket, which lacks session and project-access checks. Attackers can use UNION or boolean count oracles to read other tenants' events and profiles, and project members can similarly inject via the cohort.preview timeframe values.

Affected products

• Openpanel-dev openpanel: before 3.0.0 — fixed in 3.0.0

How to fix

Upgrade to a fixed version: Openpanel-dev openpanel 3.0.0. Check the vendor advisory for mitigations.

References

• https://github.com/Openpanel-dev/openpanel/commit/35ddc8ebbcd4ed0767933de61f014f153d68442a
• https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-8wr9-x797-f238
• https://www.vulncheck.com/advisories/openpanel-before-3.0.0-unauthenticated-clickhouse-sql-injection-via-live-visitors-websocket

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