About support for your IdP's Conditional Access Policy

About support for Conditional Access Policies

Quand votre entreprise utilise l’authentification unique OIDC, GitHub utilise automatiquement la stratégie d’accès conditionnel de votre fournisseur d’identité pour valider les interactions utilisateur avec GitHub quand des membres changent d’adresses IP, et chaque fois qu’un personal access token ou une clé SSH est utilisé.

GitHub Enterprise Cloud supports CAP for any entreprise avec utilisateurs managés where OIDC SSO is enabled. GitHub Enterprise Cloud enforces your IdP's IP conditions but cannot enforce your device compliance conditions. Enterprise owners can choose to use this IP allow list configuration instead of GitHub Enterprise Cloud's IP allow list, and can do so once OIDC SSO is configured. For more information about IP allow lists, see "Restriction du trafic réseau vers votre entreprise avec une liste d’adresses IP autorisées" and "Gestion des adresses IP autorisées pour votre organisation."

For more information about using OIDC with Enterprise Managed Users, see "Configuring OIDC for Enterprise Managed Users" and "Migration de SAML vers OIDC."

Considerations for integrations and automations

GitHub sends the originating IP address to your IdP for validation against your CAP. To make sure actions and apps are not blocked by your IdP's CAP, you will need to make changes to your configuration.

GitHub Actions

Actions that use a personal access token will likely be blocked by your IdP's CAP. We recommend that personal access tokens are created by a service account which is then exempted from IP controls in your IdP's CAP.

If you're unable to use a service account, another option for unblocking actions that use personal access tokens is to allow the IP ranges used by GitHub Actions. For more information, see "À propos des adresses IP de GitHub."

GitHub Codespaces

GitHub Codespaces may not be available if your enterprise uses OIDC SSO with CAP to restrict access by IP addresses. This is because codespaces are created with dynamic IP addresses which it's likely your IdP’s CAP will block. Other CAP policies may also affect GitHub Codespaces's availability, depending on the policy's specific setup.

GitHub Apps and OAuth apps

When GitHub Apps and OAuth apps sign a user in and make requests on that user's behalf, GitHub will send the IP address of the app's server to your IdP for validation. If the IP address of the app's server is not validated by your IdP's CAP, the request will fail.

When GitHub Apps call GitHub APIs acting either as the app itself or as an installation, these calls are not performed on behalf of a user. Since your IdP's CAP executes and applies policies to user accounts, these application requests cannot be validated against CAP and are always allowed through. For more information on GitHub Apps authenticating as themselves or as an installation, see "À propos de l’authentification avec une application GitHub".

You can contact the owners of the apps you want to use, ask for their IP ranges, and configure your IdP's CAP to allow access from those IP ranges. If you're unable to contact the owners, you can review your IdP sign-in logs to review the IP addresses seen in the requests, then allow-list those addresses.

If you do not wish to allow all of the IP ranges for all of your enterprise's apps, you can also exempt installed GitHub Apps and authorized OAuth apps from the IdP allow list. If you do so, these apps will continue working regardless of the originating IP address. For more information, see "Application de stratégies pour les paramètres de sécurité dans votre entreprise."