CVE-2026-40600 Chartbrew: Incorrect Access Control in project share policy routes via unbound policy_id
Authenticated users can modify or delete sharing policies of other projects due to missing ownership validation on policy IDs.
- 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-2026-40600?
CVE-2026-40600 is a high-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 allows authenticated users with access to one project to update or delete a SharePolicy record that belongs to a different project. The affected routes authorize the caller against the project in the URL path, but they never verify that policy_id belongs to that project. This permits cross-project modification of dashboard sharing rules, including visibility, password requirements, allowed parameters, and expiration settings. This issue has been patched in version 5.0.0.
Weakness: CWE-639
Which versions are affected by CVE-2026-40600?
How do I fix CVE-2026-40600?
No fix has been published for CVE-2026-40600 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-2026-40600 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40600 exists.
Sources
Also known as GHSA-pq8h-2h99-39xm.