CVE-2026-54072
Description
Authorizer is an open-source, self-hostable authentication and authorization server. Prior to version 2.2.1, the `/authorize` endpoint accepts any `redirect_uri` without validating it against `AllowedOrigins`. When `response_type=token` or `response_type=id_token`, the server appends `access_token`, `id_token`, and `refresh_token` as query parameters and issues a 302 redirect to the attacker-supplied URL. An unauthenticated attacker can obtain the required `client_id` from the public `/graphql?query={meta{client_id}}` endpoint. A partial fix was applied in v2.0.1 to other handlers (`oauth_login`, `verify_email`, `magic_link_login`, `forgot_password`, `invite_members`, `oauth_callback`) but `/authorize` was not included. Version 2.2.1 contains a more complete fix.
How to fix
- github.com/authorizerdev/authorizer0.0.0-20260409051328-bd3f5baf6d3d or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| github.com/authorizerdev/authorizerGo | v < 0.0.0-20260409051328-bd3f5baf6d3d | 0.0.0-20260409051328-bd3f5baf6d3d |
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