Auth Bypass via Percent-Encoded Path in Apache DolphinScheduler Actuator (3.4.2)
CVE-2026-78214 Published on September 29, 2026
Apache DolphinScheduler: Actuator Endpoint Authentication Bypass via Percent-Encoded Paths
An authentication bypass vulnerability exists in the protection of Actuator endpoints. The application determines whether authentication is required by matching the incoming request path against protected Actuator paths. By sending a specially crafted request containing a percent-encoded path, a remote unauthenticated attacker can cause the security check to fail to recognize the request as targeting a protected endpoint.
As a result, the attacker may bypass authentication and access otherwise restricted Actuator endpoints. Successful exploitation may expose operational or configuration information and, depending on the enabled endpoints and application configuration, allow access to sensitive management functionality.
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-2026-78214 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small 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-2026-78214 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-78214
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Affected Versions
Apache Software Foundation Apache DolphinScheduler:- Before 3.4.3 is affected.