Is CVE-2026-40603 actively exploited?

No active exploitation of CVE-2026-40603 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40603 be exploited remotely?

Yes. CVE-2026-40603 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40603?

CVE-2026-40603 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-40603

CWE-284Published: April 30, 2026· Updated: May 1, 2026

6.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.0th

Official Description

Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In version 4.9.0, Chartbrew exposes a legacy dashboard route that returns a project's report data to any authenticated member of the same team, even when that user does not have access to the specific project. The route bypasses project-level authorization and returns the raw project object. As a result, a low-privileged same-team user can read another project's dashboard data and recover the project's stored report password from the response. This issue has been patched in version 5.0.0.

NVD Source

Technical Analysis

CVE-2026-40603 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.