Apache DolphinScheduler <3.4.3: /datasources auth bypass
CVE-2026-66083 Published on September 29, 2026
Apache DolphinScheduler: Unauthorized Disclosure of Data Source Information via /datasources/unauth-datasource
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.
Weakness Type
Missing Authentication for Critical Function
The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
Products Associated with CVE-2026-66083
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Affected Versions
Apache Software Foundation Apache DolphinScheduler:- Before 3.4.3 is affected.