n8n before 1.123.64, 2.29.8, and 2.30.1 contains a TOCTOU race condition in the Git node's clone operation that allows authenticated users to bypass path restrictions by swapping a directory for a symlink after the path is validated but before the clone runs. This lets an attacker plant a crafted repository in the community node directory, which n8n loads as a custom node on the next restart, executing arbitrary JavaScript on the server. Both self-hosted and cloud instances are affected.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 9
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
|
— |
1.123.64
|
|
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
|
— |
2.30.1
|
|
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
|
— |
2.29.8
|
|
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*
|
— |
1.123.64
|
|
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*
|
— |
1.123.64
|
|
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*
|
2.0.0
|
2.29.8
|
|
N8n N8n
cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*
|
2.0.0
|
2.29.8
|
|
N8n N8n
cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:*
|
— | — |
|
N8n N8n
cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:*
|
— | — |