CVE-2026-66087: Apache Software Foundation Apache Dolphinscheduler

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

An authorization bypass vulnerability in Apache DolphinScheduler allows authenticated users to operate task instance in projects they are not authorized to access through the  * /dolphinscheduler/projects/{projectCode}/task-instances/{taskInstanceId}/stop * /dolphinscheduler/projects/{projectCode}/task-instances/{taskInstanceId}/savepoint This issue affects Apache DolphinScheduler: before 3.4.3. Users are recommended to upgrade to version 3.4.3, which fixes the issue.

Affected products

• Apache Software Foundation Apache Dolphinscheduler: before 3.4.3 (fixed in 3.4.3)

Published 2026-10-08. Last modified 2026-10-08.