CVE-2026-71183: Apache DolphinScheduler: Missing Authorization Checks Allow Disclosure of Data Source Information and Passwords
An authorization vulnerability in Apache DolphinScheduler allows authenticated users to obtain information about data sources they are not authorized to access through the /unauth-datasource and /authed-datasource endpoints.
These endpoints fail to enforce the required data source access controls and return sensitive connection information, including data source passwords. As a result, an authenticated user without permission to access a data source can retrieve its connection details and credentials.
Successful exploitation exposes sensitive data source information and may enable unauthorized access to the underlying databases using the disclosed credentials.
This issue affects Apache DolphinScheduler: before 3.4.3.
Users are recommended to upgrade to version 3.4.3, which fixes the issue.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Apache DolphinSchedulerto a version that resolves this vulnerability.Fixed in 3.4.3
Event History
Frequently Asked Questions
Who can exploit this issue?
An authenticated Apache DolphinScheduler user can exploit it, even if they do not have permission to access the targeted data source. The issue affects access through the /unauth-datasource and /authed-datasource endpoints.
What information can be exposed?
The affected endpoints can disclose sensitive data source connection information, including data source passwords. Disclosed credentials may allow unauthorized access to the underlying databases.
Which deployments are affected?
Apache DolphinScheduler versions before 3.4.3 are affected. Version 3.4.3 fixes the authorization checks.
What should be done if an affected system may have been accessed?
Upgrade to Apache DolphinScheduler 3.4.3. Because data source passwords may have been disclosed, assess exposed data sources and rotate their credentials as appropriate.