Migrate from Node.js 8 to Node.js 12

As of December 31, 2019, Node.js v8 went out of long-term support (LTS), which means that the Node.js development team no longer back-ports critical security fixes to this version. This could potentially expose your extensibility code to security vulnerabilities. Therefore, Auth0 migrated from Node 8 to Node 12.

Features affected

The following Auth0 features use Node 8:

  • Rules

  • Hooks

  • Custom database connections

  • Custom social connections

  • Extensions

If you do not use any of the extensibility features mentioned above, then you are not affected by this migration.


As part of the process of introducing Node 12 in our Webtask runtime, we ran a number of tests to determine which modules are not forward-compatible from Node 8 to 12. Most customers should be able to upgrade to Node 12 without any issues.

That said, before you migrate, we highly recommend testing all of your:

  • Rules

  • Hooks

  • Custom database connections and scripts

  • Custom social connections

  • Extensions

Auth0 recommends that that you first switch your development tenant to Node 12 runtime, complete testing in your development tenant, and migrate your production tenant only when you see no issues in development.

Enable Node 12 runtime

There may be additional behavioral changes as a result of this migration, so we have provided a migration switch that allows you to control the migration of your environment to the new Webtask runtime using Node 12.

Auth0 recommends that that you first switch your development tenant to Node 12 runtime, complete testing in your development tenant, and migrate your production tenant only when you see no issues in development.

You can query the Management API for your rules, hooks, custom database scripts, and custom social connections. This will make it easier for you to move items from your production tenant to development tenant for testing purposes.

When using the Connections endpoints in the Management API, custom database scripts can be retrieved or updated using options.customScripts. Similarly, you can find custom social connections in options.scripts.fetchUserProfile.

  1. Enable Node 12 on your development tenant using the new Extensibility panel on the Advanced Tenant Settings page of the Dashboard. Choose Node 12 from the Runtime drop-down.

  2. Click Save.

  3. If you use the items listed below, complete the migration steps for each of them.

  4. Test your configuration.

  5. Once you are sure that nothing has broken, use steps 1 and 2 above to enable Node 12 on your production tenant.

Allowlist new URLs

The Delegated Administration Extension and the Single Sign-on (SSO) Dashboard Extension require allowlisting the URLs used to access extensions and custom webtasks. When you upgrade to Node 12, the URLs you use to access extensions and custom webtasks will change. This is a breaking change for these extensions.

If you use any of these extensions, you must allowlist the new URLs both as Allowed Callback and as Allowed Logout URLs.

The region portion of the URL will change from 8 to 12. If you access an extension using the URL:


when you upgrade to Node 12, the URL will be:


  1. Go to Dashboard > Applications > Applications > Settings, and add the URL to the fields Allowed Callback URLs and Allowed Logout URLs.

  2. The execution URLs will also change for custom webtasks in your Auth0 container. You must update any external applications that call those webtasks.

Republish Authorization Extension rule

If you use the Authorization Extension, it generates an auth0-authorization-extension rule. Republish this rule from within the Authorization Extension to update the URLs automatically.

  1. Ensure you have upgraded to the latest version of the Authorization Extension from the Installed Extensions tab. If the Upgrade button is present, click to upgrade. If the button is not present, you are already on the latest version of the extension.

  2. Open the Authorization Extension configuration page.

  3. To update the URL in the rule, publish the rule again by clicking the Publish Rule button.

  4. Test to make sure everything is still working. If you see an Invalid API Key error after updating, click the Rotate button to generate a new API key.

    Dashboard - Extensions - Authorization Extension - Configuration MenuAuthorization Extension Buttons Screen

Configure Delegated Administration URLs

If you use the Delegated Administration Extension, the matrix that follows contains the updated URLs you must configure after you migrate to Node 12. The URL varies based on your location.

Location Allowed Callback URL for Node 12 Allowed Logout URL for Node 12
US-1 https://{yourTenant}.us12.webtask.io/auth0-delegated-admin/login https://{yourTenant}.us12.webtask.io/auth0-delegated-admin
US-3 https://{yourTenant}.us.webtask.run/auth0-delegated-admin/login https://{yourTenant}.us.webtask.run/auth0-delegated-admin
EU https://{yourTenant}.eu12.webtask.io/auth0-delegated-admin/login https://{yourTenant}.eu12.webtask.io/auth0-delegated-admin
AU https://{yourTenant}.au12.webtask.io/auth0-delegated-admin/login https://{yourTenant}.au12.webtask.io/auth0-delegated-admin
JP-1 https://{yourTenant}.jp.webtask.run/auth0-delegated-admin/login https://{yourTenant}.jp.webtask.run/auth0-delegated-admin

For example, if you are located in the USA and you use the Delegated Administration, you should update the following fields in your application's settings:

  • Allowed Callback URLs: https://{yourTenant}.us12.webtask.io/auth0-delegated-admin/login

  • Allowed Logout URLs: https://{yourTenant}.us12.webtask.io/auth0-delegated-admin

Configure SSO Dashboard URLs

The matrix that follows contains the updated URLs you must configure after you migrate to Node 12. The URL varies based on your location.

The login URL for Admins:

Location Allowed Callback URL
US-1 https://{yourTenant}.us12.webtask.io/auth0-sso-dashboard/admins/login
US-3 https://{yourTenant}.us.webtask.run/auth0-sso-dashboard/admins/login
Europe https://{yourTenant}.eu12.webtask.io/auth0-sso-dashboard/admins/login
Australia https://{yourTenant}.au12.webtask.io/auth0-sso-dashboard/admins/login
Japan https://{yourTenant}.jp.webtask.run/auth0-sso-dashboard/admins/login

The login URL for Users:

Location Allowed Callback URL
US-1 https://{yourTenant}.us12.webtask.io/auth0-sso-dashboard/login
US-3 https://{yourTenant}.us.webtask.run/auth0-sso-dashboard/login
Europe https://{yourTenant}.eu12.webtask.io/auth0-sso-dashboard/login
Australia https://{yourTenant}.au12.webtask.io/auth0-sso-dashboard/login
Japan https://{yourTenant}.jp.webtask.run/auth0-sso-dashboard/login

Update Extensions

Most extensions use the PUBLIC_WT_URL hidden secret for authorization. This secret depends on the runtime version and does not update automatically.

To update it, you need to save the extension's settings (no changes are necessary). To do so, after switching the runtime to Node 12, you need to open the extension's settings in the extensions dashboard (gear icon), and click Save. After that, the extensions gallery will update the PUBLIC_WT_URL secret based on the selected runtime.

If you do not update the PUBLIC_WT_URL hidden secret, you will receive the following error:

Misconfiguration or Service Outage Error

Update pinned modules

If you are using the following built-in modules (that is, modules that you did not explicitly require), please be aware that some versions were updated to work with Node 12. The following table summarizes the changes. These new versions should remain backwards compatible with their previous versions.

Module name Old version New version
couchbase ~2.5.1 2.6.10
bcrypt 1.0.3 3.0.8

If you have manually pinned modules, you may need to manually update them so that your code runs with Node 12.

For example, you must change:

var bcrypt = require(‘bcrypt@1.0.3’);


var bcrypt = require(‘bcrypt’);

or, if the module must be pinned to a specific version:

var bcrypt = require(‘bcrypt@3.0.8’);