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| title | description | contentType | tags | hide | |||
|---|---|---|---|---|---|---|---|
| Security environment variables | Configure authentication and environment variable access in self-hosted n8n instance. | reference |
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Security environment variables
--8<-- "_snippets/self-hosting/file-based-configuration.md"
| Variable | Type | Default | Description |
|---|---|---|---|
N8N_BLOCK_ENV_ACCESS_IN_NODE |
Boolean | false |
Whether to allow users to access environment variables in expressions and the Code node (false) or not (true). |