CVE-2026-119408
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductN8n
PublishedOct 30, 2026
First seenNov 4, 2026
Weakness typeCWE-653CWE-653
How to fix
Update
- n8n-io n8n2.43.3, 2.42.6, 3.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| n8n-io n8n | 2.43.0 ≤ v < 2.43.3, v < 2.42.6, 3.0.0 ≤ v < 3.0.1 | 2.43.3, 2.42.6, 3.0.1 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.