Vulnerability · Published Apr 30, 2026 · Assigned by GitHub_M

CVE-2026-40601Chartbrew: Missing Authorization in /api/chart/:chart_id/query via team-level refresh toggle

High 7.5

In plain English

A high-severity missing authorization in chartbrew from chartbrew. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.3%top 74.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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 checks team.allowReportRefresh and does not verify that the target chart belongs to a public report, that the project is public, or that sharing policy allows the operation. An unauthenticated attacker who knows a chart identifier can trigger a data refresh and retrieve the current data of private charts. This issue has been patched in version 5.0.0.

Affected products (as reported)

Vendor	Product	Versions
chartbrew	chartbrew	= 4.9.0

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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