Apache DolphinScheduler <=3.4.2 Alert Script Plugin Cmd Injection
CVE-2026-82804 Published on September 29, 2026
Apache DolphinScheduler: Command Injection in the Alert Script Plugin
The scriptPath parameter is incorporated into a /bin/sh -c command without sufficient neutralization of shell metacharacters, allowing shell command substitution and execution.
An authenticated user can exploit this behavior by creating a resource whose filename contains shell command substitution syntax, such as $(...), and subsequently supplying the resulting path to the Alert Script plugin's /test-send endpoint. When the alert script is executed, the shell interprets the injected command, resulting in arbitrary command execution with the privileges of the DolphinScheduler service process.
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-2026-82804 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 be very high.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-82804 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2026-82804
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Affected Versions
Apache Software Foundation Apache DolphinScheduler:- Before 3.4.3 is affected.