What’s Vulnerable › Vulnerabilities

CVE-2026-27603: Chartbrew: Unauthenticated Chart Filter Endpoint: POST /project/:project_id/chart/:chart_id/filter missing verifyToken + checkPermissions

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-06 · updated 2026-06-17
• Weakness: CWE-306

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 version 4.8.4, the chart filter endpoint POST /project/:project_id/chart/:chart_id/filter is missing both verifyToken and checkPermissions middleware, allowing unauthenticated users to access chart data from any team/project. This issue has been patched in version 4.8.4.

Affected products

• chartbrew: before 4.8.4 — fixed in 4.8.4

How to fix

Upgrade to a fixed version: chartbrew 4.8.4. Check the vendor advisory for mitigations.

References

• https://github.com/chartbrew/chartbrew/releases/tag/v4.8.4
• https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9fhr-5vvc-p455

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