Is CVE-2026-27603 actively exploited?

No active exploitation of CVE-2026-27603 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27603 be exploited remotely?

Yes. CVE-2026-27603 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-27603?

CVE-2026-27603 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-27603

CWE-306Published: March 6, 2026· Updated: Mar 10, 2026

7.5

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:22.1th

Official 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.

NVD Source

Technical Analysis

CVE-2026-27603 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.