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.
Published: 2026-10-08
Score: 8.1 High
EPSS: < 1% Very Low
KEV: No
Impact: Unauthorized task control via authorization bypass
Action: Patch
AI Analysis

Impact

An authenticated user can stop or create a savepoint for a task instance in a project they are not authorized to access, effectively bypassing project-level authorization controls. The flaw originates from the /dolphinscheduler/projects/{projectCode}/task‑instances/{taskInstanceId}/stop and /dolphinscheduler/projects/{projectCode}/task‑instances/{taskInstanceId}/savepoint endpoints, allowing the attacker to manipulate tasks in unauthorized projects.

Affected Systems

Apache DolphinScheduler, provided by the Apache Software Foundation. Versions prior to 3.4.3 are affected.

Risk and Exploitability

The vulnerability is exploitable through the HTTP API endpoints, so any authenticated user with network access to the DolphinScheduler server can perform unauthorized task operations. The CVSS score is 8.1, indicating a high severity vulnerability, while the EPSS score of less than 1% suggests a low probability of exploitation in the near term. This vulnerability is not listed in CISA KEV. Attackers can extend control to tasks and potentially disrupt workflows across projects, making the impact significant for systems that rely heavily on task isolation.

Generated by OpenCVE AI on October 8, 2026 at 23:06 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Apache DolphinScheduler to version 3.4.3 or later.
  • Review and enforce role‑based access control settings to restrict stop and savepoint operations to authorized project members.
  • Temporarily block the /stop and /savepoint API endpoints using a firewall or API gateway until the vendor patch is applied.

Generated by OpenCVE AI on October 8, 2026 at 23:06 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 08 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 08 Oct 2026 10:30:00 +0000

Type Values Removed Values Added
References

Thu, 08 Oct 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache dolphinscheduler
Vendors & Products Apache
Apache dolphinscheduler

Thu, 08 Oct 2026 08:45:00 +0000

Type Values Removed Values Added
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.
Title Apache DolphinScheduler: Project Authorization Bypass in the Task instance stop/savepoint Endpoint
Weaknesses CWE-863
References

Subscriptions

Apache Dolphinscheduler
cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-10-08T20:21:27.148Z

Reserved: 2026-07-24T02:08:33.651Z

Link: CVE-2026-66087

cve-icon Vulnrichment

Updated: 2026-10-08T09:16:28.711Z

cve-icon NVD

Status : Deferred

Published: 2026-10-08T09:16:41.910

Modified: 2026-10-08T21:18:02.143

Link: CVE-2026-66087

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-08T23:15:13Z

Weaknesses