CVE-2025-68668: n8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code Node
Impact A sandbox bypass vulnerability exists in the Python Code Node that uses Pyodide.
An authenticated user with permission to create or modify workflows can exploit this vulnerability to execute arbitrary commands on the host system running n8n, using the same privileges as the n8n process.
Patches In n8n version 1.111.0, a task-runner-based native Python implementation was introduced as an optional feature, providing a more secure isolation model.
To enable it, you need to configure the N8NRUNNERSENABLED and N8NNATIVEPYTHONRUNNER environment variables.
This implementation became the default starting with n8n version 2.0.0.
Workarounds - Disable the Code Node by setting the environment variable NODESEXCLUDE: "[\"n8n-nodes-base.code\"]" (Docs) - Disable Python support in the Code node by setting the environment variable N8NPYTHONENABLED=false, which was introduced in n8n version 1.104.0. - Configure n8n to use the task runner based Python sandbox via the N8NRUNNERSENABLED and N8NNATIVEPYTHONRUNNER environment variables. (Docs)
Resources - n8n documentation: Blocking access to nodes - n8n documentation: Code Node (Python) - n8n documentation: Task Runners
Other sources
n8n is an open source workflow automation platform. From version 1.0.0 to before 2.0.0, a sandbox bypass vulnerability exists in the Python Code Node that uses Pyodide. An authenticated user with permission to create or modify workflows can exploit this vulnerability to execute arbitrary commands on the host system running n8n, using the same privileges as the n8n process. This issue has been patched in version 2.0.0. Workarounds for this issue involve disabling the Code Node by setting the environment variable NODESEXCLUDE: "[\"n8n-nodes-base.code\"]", disabling Python support in the Code node by setting the environment variable N8NPYTHONENABLED=false, which was introduced in n8n version 1.104.0, and configuring n8n to use the task runner based Python sandbox via the N8NRUNNERSENABLED and N8NNATIVEPYTHONRUNNER environment variables.
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2025-68668?
CVE-2025-68668 is considered a high severity vulnerability due to its potential for arbitrary command execution.
How do I fix CVE-2025-68668?
To address CVE-2025-68668, upgrade n8n to version 2.0.0 or later.
Who is affected by CVE-2025-68668?
CVE-2025-68668 affects authenticated users with permissions to create or modify workflows in n8n versions 1.0.0 to 2.0.0.
What type of vulnerability is CVE-2025-68668?
CVE-2025-68668 is a sandbox bypass vulnerability affecting the Python Code Node utilizing Pyodide.
What can attackers do with CVE-2025-68668?
Exploiting CVE-2025-68668 allows attackers to execute arbitrary commands on the host system with the same privileges as the n8n process.