Vulnerability · Published Oct 26, 2026 · Assigned by VulnCheck

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

High 8.2

In plain English

A high-severity SQL injection in openpanel from Openpanel-dev. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.4%top 62.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Openpanel-dev	openpanel	0 – before 3.0.0

Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

References

GitHub Security Advisory (GHSA-8wr9-x797-f238) vendor-advisory
https://github.com/Openpanel-dev/openpanel/commit/35ddc8ebbcd4ed0767933de61f014f153d68442a patch
VulnCheck Advisory: OpenPanel before 3.0.0 Unauthenticated ClickHouse SQL Injection via /live/visitors WebSocket third-party-advisory