---
id: CVE-2026-65980
title: >-
  Chartbrew is an open-source web application that can connect directly to
  databases and APIs and use the data to create charts
summary: >-
  Chartbrew is an open-source web application that can connect directly to
  databases and APIs and use the data to create charts. Prior to 5.2.3,
  Chartbrew's ClickHouse protocol in
  server/sources/plugins/clickhouse/clickhouse.protocol.js ca…
severity: high
cvss: 7.9
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H'
cwe:
  - CWE-89
vendor: chartbrew
product: chartbrew
affected:
  - chartbrew < 5.2.2
published: '2026-09-21'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:25:27.050'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-65980'
references:
  - url: >-
      https://github.com/chartbrew/chartbrew/commit/5f95d07b5fee7f69c9d1242b5c99ea11ff046341
    label: security-advisories@github.com
  - url: 'https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3'
    label: security-advisories@github.com
  - url: >-
      https://github.com/chartbrew/chartbrew/security/advisories/GHSA-5jgv-45cw-hc53
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
epss: 0.0066
epssPercentile: 0.49398
cvssSource: cna
ingestedAt: '2026-09-21T21:53:57.425Z'
---

## Overview

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.3, Chartbrew's ClickHouse protocol in server/sources/plugins/clickhouse/clickhouse.protocol.js calls applySqlVariables() from server/sources/shared/sql/sql.variables.js without enabling the escapeBackslash option. For a ClickHouse-backed chart with variable binding, an attacker can supply a backslash before a quote so quote doubling does not keep the value within its intended SQL string literal. Public dashboards can expose this path without authentication, and successful exploitation can execute arbitrary ClickHouse SQL to disclose data or, when the database configuration permits, access files or internal network resources. This issue is fixed in version 5.2.3.

## Remediation

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