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Integrate with Cloudflare Access

Support level: Community

What is Cloudflare Access?​

Cloudflare Access is a secure, cloud-based zero-trust solution for managing and authenticating user access to internal applications and resources.

-- https://www.cloudflare.com/zero-trust/products/access/

Preparation​

The following placeholders are used in this guide:

  • company.cloudflareaccess.com is the FQDN of your Cloudflare Access team domain.
  • authentik.company is the FQDN of the authentik installation.

To proceed, you need a Cloudflare account with Cloudflare Zero Trust enabled and a publicly accessible authentik instance with a trusted SSL certificate.

info

This documentation lists only the settings that you need to change from their default values. Be aware that any changes other than those explicitly mentioned in this guide could cause issues accessing your application.

Cloudflare Dashboard SSO

Looking to integrate authentik with your Cloudflare Dashboard? See our integration guide for more information.

authentik configuration​

Redirect URI changes in authentik 2026.5

In authentik versions earlier than 2026.5, all Redirect URIs are automatically treated as Authorization type. If you are using one of these older authentik versions, add only the Authorization URL to your Redirect URIs and do not configure a Post Logout URI.

To support the integration of Cloudflare Access with authentik, you need to create an application/provider pair in authentik.

Cloudflare uses your Cloudflare Access team name in the callback URL. You can find the team name in the Cloudflare dashboard under Settings > Team name and domain > Team name.

Create an application and provider in authentik​

  1. Log in to authentik as an administrator and open the authentik Admin interface.
  2. Navigate to Applications > Applications and click New Application to open the application wizard.
    • Application: provide a descriptive name, an optional group for the type of application, the policy engine mode, and optional UI settings.
    • Choose a Provider type: select OAuth2/OpenID Connect as the provider type.
    • Configure the Provider: provide a name (or accept the auto-provided name), the authorization flow to use for this provider, and the following required configurations.
      • Note the Client ID, Client Secret, and slug values because they will be required later.
      • Add a Redirect URI of type Strict Authorization as https://company.cloudflareaccess.com/cdn-cgi/access/callback.
      • Select any available signing key.
    • Configure Bindings (optional): you can create a binding (policy, group, or user) to manage the listing and access to applications on a user's Application Dashboard page.
  3. Click Submit to save the new application and provider.

Cloudflare Access configuration​

  1. Open the Cloudflare dashboard and go to Zero Trust > Integrations > Identity providers.
  2. Under Your identity providers, click Add new identity provider, and then select OpenID Connect.
  3. Configure the identity provider using values from the authentik provider created earlier:
    • Name: enter a descriptive name, for example authentik.
    • App ID: enter the Client ID from authentik.
    • Client Secret: enter the Client Secret from authentik.
    • Auth URL: enter https://authentik.company/application/o/authorize/.
    • Token URL: enter https://authentik.company/application/o/token/.
    • Certificate URL: enter https://authentik.company/application/o/<application_slug>/jwks/.
  4. Click Save.

Configuration verification​

To confirm that authentik is properly configured with Cloudflare Access, open Cloudflare Access, go to Authentication > Login methods, and click Test next to the authentik login method. Complete the login flow and verify that Cloudflare displays a successful test result.

Resources​