Description
n8n before 2.42.6, 2.43.x before 2.43.3, and 3.x before 3.0.1 contains a remote code execution vulnerability via deprecated Function, Function Item, and LangChain Code nodes running outside task runner isolation. Authenticated users who can create, modify, or import workflows naming these hidden node types can execute JavaScript in the n8n main process.
Metrics
CVSS 3.1 8.8/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n8n-io | n8n | >= 2.43.0, < 2.43.3 |
| n8n-io | n8n | < 2.42.6 |
| n8n-io | n8n | >= 3.0.0, < 3.0.1 |
References
- https://abraxaslabs.tech/research/n8n-function-vm2
- https://github.com/n8n-io/n8n
- https://github.com/n8n-io/n8n/blob/n8n@2.42.0/packages/nodes-base/nodes/Function/Function.node.ts#L167
- https://github.com/n8n-io/n8n/commit/ea8417e29ad6f8b981d9a04b17283d5d77f2b5bb
- https://github.com/n8n-io/n8n/releases/tag/n8n@2.42.6
- https://github.com/n8n-io/n8n/releases/tag/n8n@2.43.3
- https://github.com/n8n-io/n8n/releases/tag/n8n@3.0.1
- https://github.com/n8n-io/n8n/security/advisories/GHSA-9p7v-45m2-wxgj
- https://www.vulncheck.com/advisories/n8n-before-2.42.6-2.43.3-and-3.0.1-code-execution-outside-task-runner-isolation-via-deprecated-function-nodes
Timeline
- Published
- Oct 30, 2026
- Last modified
- Nov 5, 2026
- NVD status
- Deferred