Vulnerability details
CVE-2026-65980
Chartbrew: SQL Injection via Missing Backslash Escaping in ClickHouse Variable Substitution
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.9High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| chartbrew | chartbrew | < 5.2.2 | CVEProject cvelistV5 (CNA) |
References and advisories
3- https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3 x_refsource_MISC
- https://github.com/chartbrew/chartbrew/commit/5f95d07b5fee7f69c9d1242b5c99ea11ff046341 x_refsource_MISC
- https://github.com/chartbrew/chartbrew/security/advisories/GHSA-5jgv-45cw-hc53 x_refsource_CONFIRM
Details
- Published
- 2026-09-22
- Last updated
- 2026-09-28
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')