What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-30 · updated 2026-06-17
• Weakness: CWE-862

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

• chartbrew: = 4.9.0

References

• https://github.com/chartbrew/chartbrew/releases/tag/v5.0.0
• https://github.com/chartbrew/chartbrew/security/advisories/GHSA-cpr6-mhgm-893w

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