Using GitHub SSO on a self-hosted instance of Infisical requires configuring an OAuth2 application in GitHub and registering your instance with it.
1

Create an OAuth application in GitHub

Navigate to your user Settings > Developer settings > OAuth Apps to create a new GitHub OAuth application.
GitHub settings
GitHub developer settings
GitHub create new OAuth application
Create the OAuth application. As part of the form, set the Homepage URL to your self-hosted domain https://your-domain.com and the Authorization callback URL to https://your-domain.com/api/v1/sso/github.
GitHub create new OAuth application form
If you have a GitHub organization, you can create an OAuth application under it in your organization Settings > Developer settings > OAuth Apps > New Org OAuth App.
2

Add your OAuth application credentials to Infisical

Obtain the Client ID and generate a new Client Secret for your GitHub OAuth application.
GCP obtain OAuth2 credentials
Back in your Infisical instance, make sure to set the following environment variables:
  • CLIENT_ID_GITHUB_LOGIN: The Client ID of your GitHub OAuth application.
  • CLIENT_SECRET_GITHUB_LOGIN: The Client Secret of your GitHub OAuth application.
  • AUTH_SECRET: A secret key used for signing and verifying JWT. This can be a random 32-byte base64 string generated with openssl rand -base64 32.
  • SITE_URL: The URL of your self-hosted instance of Infisical - should be an absolute URL including the protocol (e.g. https://app.infisical.com)
Once added, restart your Infisical instance and log in with GitHub.

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FAQ

It is likely that you have misconfigured your self-hosted instance of Infisical. You should:
  • Check that you have set the CLIENT_ID_GITHUB_LOGIN, CLIENT_SECRET_GITHUB_LOGIN, AUTH_SECRET, and SITE_URL environment variables.
  • Check that the Authorization callback URL specified in GitHub matches the SITE_URL environment variable. For example, if the former is https://app.infisical.com/api/v1/sso/github then the latter should be https://app.infisical.com.