Apache DolphinScheduler 3.4.3: Improper Auth in Sub-Workflow Tasks
CVE-2026-81569 Published on September 29, 2026
Apache DolphinScheduler: Improper Authorization in Sub-Workflow Tasks Allows Unauthorized Workflow Execution
An improper authorization vulnerability exists in the handling of sub-workflow tasks. An authenticated user who does not have permission to access a target project can reference and invoke a workflow belonging to that project through a sub-workflow task.
The system does not properly verify whether the user has permission to execute the referenced workflow or access its project. As a result, the user can bypass project-level authorization controls and cause workflows in unauthorized projects to be executed.
Successful exploitation may allow unauthorized execution of workflow tasks and access to the resources or data available to the target workflow.
This issue affects Apache DolphinScheduler: before 3.4.3.
Users are recommended to upgrade to version 3.4.3, which fixes the issue.
Vulnerability Analysis
CVE-2026-81569 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-81569 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-81569
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Affected Versions
Apache Software Foundation Apache DolphinScheduler:- Before 3.4.3 is affected.