Vulnerability · Published Apr 30, 2026 · Assigned by GitHub_M

CVE-2026-40600Chartbrew: Incorrect Access Control in project share policy routes via unbound policy_id

High 8.1

In plain English

A high-severity authorization bypass via user-controlled key in chartbrew from chartbrew. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.2%top 85.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
chartbrew	chartbrew	= 4.9.0

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

https://github.com/chartbrew/chartbrew/security/advisories/GHSA-pq8h-2h99-39xm x_refsource_CONFIRM
https://github.com/chartbrew/chartbrew/releases/tag/v5.0.0 x_refsource_MISC