CVE-2026-66087
Received Received - Intake

Authorization Bypass in Apache DolphinScheduler

Publication date: 2026-10-08

Last updated on: 2026-10-08

Assigner: Apache Software Foundation

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.

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Meta Information

Published
2026-10-08
Last Modified
2026-10-08
Generated
2026-10-08
AI Q&A
2026-10-08
EPSS Evaluated
N/A
NVD
CVE-2026-66087
EUVD
EUVD-2026-94807

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Apache Software Foundation Apache DolphinScheduler 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

This vulnerability is an authorization bypass in Apache DolphinScheduler. It allows authenticated users to perform operations on task instances within projects they are not authorized to access. Specifically, it affects the endpoints for stopping or saving task instances.

Detection Guidance

To detect this vulnerability, check Apache DolphinScheduler versions before 3.4.3. Inspect logs for unauthorized access attempts to the endpoints /dolphinscheduler/projects/{projectCode}/task-instances/{taskInstanceId}/stop or /dolphinscheduler/projects/{projectCode}/task-instances/{taskInstanceId}/savepoint. Verify user permissions and project access controls.

Impact Analysis

An attacker with valid credentials could manipulate task instances in unauthorized projects, potentially leading to unauthorized access, data leakage, or disruption of scheduled tasks. This could impact system integrity and confidentiality.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's data protection principles and HIPAA's security requirements. It may result in non-compliance due to potential data breaches or unauthorized modifications.

Mitigation Strategies

Upgrade Apache DolphinScheduler to version 3.4.3 or later to fix the authorization bypass vulnerability affecting task instance operations.

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