---
id: CVE-2026-116815
title: OpenPanel before 3.0.0 Improper ClickHouse Escaping in sankey.service.ts
summary: >-
  OpenPanel before 3.0.0 contains an improper escaping vulnerability in
  sankey.service.ts that allows authenticated project members to break
  ClickHouse string literals by supplying backslashes in event names. Attackers
  with read access can…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'
cvssSource: cna
cwe:
  - CWE-116
vendor: Openpanel-dev
product: openpanel
affected:
  - openpanel < 3.0.0
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T23:05:44.097Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-116815'
references:
  - url: >-
      https://github.com/Openpanel-dev/openpanel/security/advisories/GHSA-gvr5-22f4-pj6g
    label: GitHub Security Advisory (GHSA-gvr5-22f4-pj6g)
  - url: >-
      https://www.vulncheck.com/advisories/openpanel-before-3.0.0-improper-clickhouse-escaping-in-sankey-service-ts
    label: >-
      VulnCheck Advisory: OpenPanel before 3.0.0 Improper ClickHouse Escaping in
      sankey.service.ts
tags:
  - cve.org
epss: 0.0023
epssPercentile: 0.13796
ingestedAt: '2026-10-27T16:11:59.144Z'
---

## Overview

OpenPanel before 3.0.0 contains an improper escaping vulnerability in sankey.service.ts that allows authenticated project members to break ClickHouse string literals by supplying backslashes in event names. Attackers with read access can submit crafted events[].name values to the chart.sankey procedure, causing ClickHouse parse errors that disable the project's Sankey chart endpoint.

## Affected

- `openpanel < 3.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.