Apache DolphinScheduler Auth Bypass /users/list-all before 3.4.3
CVE-2026-71896 Published on October 8, 2026
Apache DolphinScheduler: Missing Authorization Checks Allow Unauthorized Disclosure of User Account Information
An authorization vulnerability in Apache DolphinScheduler allows authenticated users to retrieve other users' account information through the /dolphinscheduler/users/list-all endpoint without the required permissions.
The endpoint fails to enforce the necessary authorization checks before returning user account information. As a result, an authenticated user can access account information they are not authorized to view.
Successful exploitation may expose sensitive user information and facilitate account enumeration.
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-2026-71896 is exploitable 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 a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-71896 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-71896
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Affected Versions
Apache Software Foundation Apache DolphinScheduler:- Before 3.4.3 is affected.