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TI-2026-21989 Aliases CVE-2026-27603

Missing authentication in chartbrew

Priority MEDIUM 44CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00478 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed chartbrew (chartbrew): 4.8.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
chartbrewchartbrewbefore 4.8.44.8.4Patch availableCNA
  • chartbrew Vendorchartbrew Affected before 4.8.4 Fixed in 4.8.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:depomo:chartbrew:*:*:*:*:*:*:*:*before 4.8.4Vulnerablechartbrew
  • cpe:2.3:a:depomo:chartbrew:*:*:*:*:*:*:*:* Versions before 4.8.4 Vulnerable ·chartbrew

Remediation

  • Fix · CNA chartbrew (chartbrew) Fixed in 4.8.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27603

References

Exploit 1

Other 1

  • TI-2026-24781 Chartbrew Cross-Tenant Template Export and Secret Disclosure in `GET /team/:team_id/template/generate/:project_id` CVSS 3.1HIGH 7.7
  • TI-2026-21482 Chartbrew: SQL injection in date-type variable handling (applyMysqlOrPostgresVariables) CVSS 4.0HIGH 8.8
  • TI-2026-20927 Chartbrew: Remote Code Execution (RCE) via Vulnerable API CVSS 3.1HIGH 8.8
  • TI-2026-23465 Chartbrew has SSRF in API Data Connection - No IP Validation on User-Provided URLs CVSS 4.0HIGH 7.8
  • TI-2026-20926 Chartbrew: Remote Code Execution (RCE) via MongoDB Dataset Query CVSS 3.1HIGH 7.2
  • TI-2026-20917 Chartbrew: Insecure Direct Object Reference (IDOR) in Chart Operations CVSS 3.1MEDIUM 6.5
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences