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CVE-2026-27603

HIGH CVSS 4.0: 8.7 EPSS 0.09%
Updated Mar 06, 2026
Chartbrew
Parameter Value
CVSS 8.7 (HIGH)
Fixed In 4.8.4
Type CWE-306 (Missing Authentication for Critical Function)
Vendor Chartbrew
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0