What is CVE-2026-40601?

CVE-2026-40601 is a high-severity vulnerability in Chartbrew, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-04-30.

How severe is CVE-2026-40601?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Chartbrew

CVE-2026-40601

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In version 4.9.0, Chartbrew exposes POST /api/chart/:chart_id/query without authentication. The endpoint only ch…

Vulnerability class: Broken Access Control

EPSS: 0.001 (29.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Chartbrew — versions = 4.9.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

https://github.com/chartbrew/chartbrew/security/advisories/GHSA-cpr6-mhgm-893w (x_refsource_CONFIRM)
https://github.com/chartbrew/chartbrew/releases/tag/v5.0.0 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-40601?: CVE-2026-40601 is a high-severity vulnerability in Chartbrew, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-04-30.
How severe is CVE-2026-40601?: High severity. CVSS v3 base score is 7.5 out of 10.