CVE-2026-66087 Apache DolphinScheduler: Project Authorization Bypass in the Task instance stop/savepoint Endpoint
Authenticated users can stop or savepoint tasks in unauthorized projects due to missing authorization checks in Apache DolphinScheduler.
- 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-2026-66087?
CVE-2026-66087 is a high-severity missing authorization vulnerability in Apache DolphinScheduler, published on 8 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-863
Which versions are affected by CVE-2026-66087?
How do I fix CVE-2026-66087?
No fix has been published for CVE-2026-66087 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-2026-66087 being exploited?
There is no known exploitation of CVE-2026-66087 in the wild and no public exploit code.
Sources
Also known as GHSA-8x8j-rj29-7qph.