Description
n8n is an open source workflow automation platform. Versions 0.123.1 through 1.119.1 do not have adequate protections to prevent RCE through the project's pre-commit hooks. The Add Config operation allows workflows to set arbitrary Git configuration values, including core.hooksPath, which can point to a malicious Git hook that executes arbitrary commands on the n8n host during subsequent Git operations. Exploitation requires the ability to create or modify an n8n workflow using the Git node. This issue is fixed in version 1.119.2. Workarounds include excluding the Git Node (Docs) and avoiding cloning or interacting with untrusted repositories using the Git Node.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
High
Integrity (Subsequent System)
High
Availability (Subsequent System)
High
Affected products
- n8n-io / n8n>= 0.123.1, < 1.119.2 – >= 0.123.1, < 1.119.2
References
- VENDOR_ADVISORYhttps://github.com/n8n-io/n8n/security/advisories/GHSA-wpqc-h9wp-chmq
- PATCHhttps://github.com/n8n-io/n8n/commit/d5a1171f95f75def5c3ac577707ab913e22aef04
- PATCHhttps://github.com/n8n-io/n8n/releases/tag/n8n%401.119.2
- MISChttps://n8n-docs.teamlab.info/hosting/securing/blocking-nodes/#exclude-nodes