Is CVE-2026-40601 actively exploited?

No active exploitation of CVE-2026-40601 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40601 be exploited remotely?

Yes. CVE-2026-40601 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40601?

CVE-2026-40601 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-40601

CWE-862Published: April 30, 2026· Updated: May 1, 2026

7.5

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:20.0th

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 POST /api/chart/:chart_id/query without authentication. The endpoint only checks team.allowReportRefresh and does not verify that the target chart belongs to a public report, that the project is public, or that sharing policy allows the operation. An unauthenticated attacker who knows a chart identifier can trigger a data refresh and retrieve the current data of private charts. This issue has been patched in version 5.0.0.

NVD Source

Technical Analysis

CVE-2026-40601 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.