Chartbrew up to 4.8.x :project_id improper authorization

Summaryinfo

A vulnerability identified as critical has been detected in Chartbrew up to 4.8.x. This affects an unknown function of the file /team/:team_id/template/generate/:project_id. Performing a manipulation results in improper authorization. This vulnerability is known as CVE-2026-32252. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Chartbrew up to 4.8.x. This affects some unknown functionality of the file /team/:team_id/template/generate/:project_id. The manipulation with an unknown input leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality. The summary by CVE is:

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 4.9.0, a cross-tenant authorization bypass exists in Chartbrew in GET /team/:team_id/template/generate/:project_id. The GET handler calls checkAccess(req, "updateAny", "chart") without awaiting the returned promise, and it does not verify that the supplied project_id belongs to req.params.team_id or to the caller's team. As a result, an authenticated attacker with valid template-generation permissions in their own team can request the template model for a project belonging to another team and receive victim project data. This vulnerability is fixed in 4.9.0.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-32252 since 03/11/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

Upgrading to version 4.9.0 eliminates this vulnerability. Applying the patch bf5919043d3587fcbe76123aaabd9a0a9d1033f1 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• Chartbrew

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8

License

• open-source

Website

• Product: https://github.com/chartbrew/chartbrew/

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