CVE-2026-71899 Apache DolphinScheduler: Missing Authorization in query-dynamic-sub-workflows API Leads to Information Disclosure
An authenticated user can access workflow data from unauthorized projects due to missing authorization checks in the query-dynamic-sub-workflows API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71899?
CVE-2026-71899 is a medium-severity missing authorization vulnerability in Apache DolphinScheduler, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A missing authorization vulnerability exists in the `query-dynamic-sub-workflows` API of Apache DolphinScheduler. The API does not properly verify whether the authenticated user has permission to access the workflows being queried.
An authenticated user who does not have permission to access a specific project can invoke the API with parameters referencing workflows belonging to that project and retrieve workflow information. This allows users to access workflow data outside their authorized project scope, resulting in unauthorized information disclosure.
This issue affects Apache DolphinScheduler: from 3.2.0 before 3.4.3.
Users are recommended to upgrade to version 3.4.3, which fixes the issue.
Which versions are affected by CVE-2026-71899?
How do I fix CVE-2026-71899?
No fix has been published for CVE-2026-71899 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-71899 being exploited?
There is no known exploitation of CVE-2026-71899 in the wild and no public exploit code.
Sources
Also known as GHSA-cmrj-w8v5-mv8v.