CVE-2026-40603 Chartbrew: Incorrect Access Control in /api/project/dashboard/:brewName via same-team override
Low-privileged users can access unauthorized project dashboards and recover stored report passwords due to missing project-level authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-40603?
CVE-2026-40603 is a medium-severity missing authorization vulnerability in chartbrew, published on 30 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-284
Which versions are affected by CVE-2026-40603?
How do I fix CVE-2026-40603?
No fix has been published for CVE-2026-40603 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-40603 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40603 exists.
Sources
Also known as GHSA-6qr3-g75h-xm3f.