CVE-2025-53942 Information

Description

authentik is an open-source Identity Provider that emphasizes flexibility and versatility with support for a wide set of protocols. In versions 2025.4.4 and earlier as well as versions 2025.6.0-rc1 through 2025.6.3 deactivated users who registered through OAuth/SAML or linked their accounts to OAuth/SAML providers can still retain partial access to the system despite their accounts being deactivated. They end up in a half-authenticated state where they cannot access the API but crucially they can authorize applications if they know the URL of the application. To workaround this issue developers can add an expression policy to the user login stage on the respective authentication flow with the expression of return request.context[\pending_user].is_active. This modification ensures that the return statement only activates the user login stage when the user is active. This issue is fixed in versions authentik 2025.4.4 and 2025.6.4.

Reference

https://github.com/goauthentik/authentik/commit/7a4c6b9b50f8b837133a7a1fd2cb9b7f18a145cd https://github.com/goauthentik/authentik/commit/c3629d12bfe3d32d3dc8f85c0ee1f087a55dde8f https://github.com/goauthentik/authentik/commit/ce3f9e3763c1778bf3a16b98c95d10f4091436ab https://github.com/goauthentik/authentik/security/advisories/GHSA-9g4j-v8w5-7x42

Related CNNVD

CNNVD-202507-3048 (Published: 2025-07-23)