CVE-2026-40595 HIGH

CVE-2026-40595: Chartbrew: Incorrect Access Control in public chart and export routes via missing onReport and SharePolicy checks

Vendor Chartbrew
Product chartbrew
Weakness CWE-284
Published April 30, 2026
Last update April 30, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

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 public chart retrieval and export routes that only verify project-level public access and, for exports, a team-level export toggle. The routes do not verify whether the target chart is actually allowed on the public report or whether the governing SharePolicy permits public access. An unauthenticated attacker who knows a chart identifier in a public project can read or export chart data for charts that were intentionally hidden from the report. This issue has been patched in version 5.0.0.

Key dates

02Disclosure timeline

April 30, 2026 CVE published
April 30, 2026 Record updated