CVE-2026-66083 PUBLISHED

Apache DolphinScheduler: Unauthorized Disclosure of Data Source Information via /datasources/unauth-datasource

Assigner: apache
Reserved: 24.07.2026 Published: 29.09.2026 Updated: 29.09.2026

The /datasources/unauth-datasource endpoint does not properly enforce data source authorization. An authenticated user can invoke this endpoint to obtain information about data sources they are not authorized to access. This may expose data source configuration and other sensitive metadata, depending on the fields returned by the endpoint.

This issue affects Apache DolphinScheduler: before 3.4.3.

Users are recommended to upgrade to version 3.4.3, which fixes the issue.

Product Status

Vendor Apache Software Foundation
Product Apache DolphinScheduler
Versions Default: unaffected
  • affected from 0 to 3.4.3 (excl.)

Credits

  • n0mi1k finder
  • meifukun finder
  • Mingsheng Lin finder
  • Thành Nguyễn finder
  • Raphael Zanarelli finder
  • geo-chen finder

References

Problem Types

  • CWE-306 Missing authentication for critical function CWE