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Vulnerability record · CVE-2026-65980 · published 21 September 2026

CVE-2026-65980: SQL injection vulnerability

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.

7.9 CVSS 4.0 High EPSS 0.66% · top 50.4% CWE-89 · SQL injection Deferred
7.9CVSS 4.0 base score
0.66%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
28 Sep 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/chartbrew/chartbrew/commit/5f95d07b5fee7f69c9d1242b5c99ea11ff046341
https://github.com/chartbrew/chartbrew/releases/tag/v5.2.3
https://github.com/chartbrew/chartbrew/security/advisories/GHSA-5jgv-45cw-hc53
https://github.com/chartbrew/chartbrew/security/advisories/GHSA-5jgv-45cw-hc53

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Source: NIST National Vulnerability Database (record CVE-2026-65980), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.