CVE-2026-27603

HIGH
2026-03-06 [email protected]
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
PoC Detected
Mar 10, 2026 - 14:02 vuln.today
Public exploit code
CVE Published
Mar 06, 2026 - 05:16 nvd
HIGH 7.5

Tags

Authentication Bypass Chartbrew

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.

Analysis

Chartbrew versions up to 4.8.4 is affected by missing authentication for critical function (CVSS 7.5).

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Remediation

Within 24 hours: inventory all Chartbrew instances and document versions in use; isolate affected systems from production if possible and restrict network access. Within 7 days: implement network segmentation to limit Chartbrew access to authorized users only; deploy WAF rules to block suspicious requests to authentication-bypass endpoints; contact Chartbrew vendor for patch timeline and interim security guidance. …

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Priority Score

58
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +38
POC: +20

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CVE-2026-27603 vulnerability details – vuln.today
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