Vulnerability · Published Mar 6, 2026 · Assigned by GitHub_M

CVE-2026-27603Chartbrew: Unauthenticated Chart Filter Endpoint: POST /project/:project_id/chart/:chart_id/filter missing verifyToken + checkPermissions

High 8.7

In plain English

A high-severity missing authentication in chartbrew from chartbrew. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.5%top 58.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

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. Prior to version 4.8.4, the chart filter endpoint POST /project/:project_id/chart/:chart_id/filter is missing both verifyToken and checkPermissions middleware, allowing unauthenticated users to access chart data from any team/project. This issue has been patched in version 4.8.4.

Affected products (as reported)

Vendor	Product	Versions
chartbrew	chartbrew	< 4.8.4

Weakness: CWE-306 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9fhr-5vvc-p455 x_refsource_CONFIRM
https://github.com/chartbrew/chartbrew/releases/tag/v4.8.4 x_refsource_MISC