High severity · published Mar 6, 2026
CVE-2026-27603
Chartbrew: Unauthenticated Chart Filter Endpoint: POST /project/:project_id/chart/:chart_id/filter missing verifyToken + checkPermissions
7.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CH
chartbrew · chartbrew
< 4.8.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27603
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27603
Release Notes
https://github.com/chartbrew/chartbrew/releases/tag/v4.8.4
Exploit
https://github.com/chartbrew/chartbrew/security/advisories/GHSA-9fhr-5vvc-p455
More from chartbrew
9.8
CVE-2026-27005
Chartbrew: SQL injection in date-type variable handling (applyMysqlOrPostgresVariables)
9.6
CVE-2026-30232
Chartbrew has SSRF in API Data Connection - No IP Validation on User-Provided URLs
8.8
CVE-2026-25888
Chartbrew: Remote Code Execution (RCE) via Vulnerable API
8.1
CVE-2026-40600
Chartbrew: Incorrect Access Control in project share policy routes via unbound policy_id
8.1
CVE-2026-40904
Chartbrew: Incorrect Access Control in dataset and dataRequest routes via team-scoped permission checks