goauthentik prior 2025.4.3/2025.6.3 RAC Endpoint improper authentication

Summaryinfo

A vulnerability was found in goauthentik authentik and classified as critical. The impacted element is an unknown function of the component RAC Endpoint. The manipulation results in improper authentication. This vulnerability was named CVE-2025-52553. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in goauthentik authentik. It has been classified as critical. Affected is an unknown code of the component RAC Endpoint. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

authentik is an open-source identity provider. After authorizing access to a RAC endpoint, authentik creates a token which is used for a single connection and is sent to the client in the URL. This token is intended to only be valid for the session of the user who authorized the connection, however this check is missing in versions prior to 2025.6.3 and 2025.4.3. When, for example, using RAC during a screenshare, a malicious user could access the same session by copying the URL from the shown browser. authentik 2025.4.3 and 2025.6.3 fix this issue. As a workaround, it is recommended to decrease the duration a token is valid for (in the RAC Provider settings, set Connection expiry to `minutes=5` for example). The maintainers of authentik also recommend enabling the option Delete authorization on disconnect.

The advisory is available at github.com. This vulnerability is traded as CVE-2025-52553 since 06/18/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 2025.4.3 or 2025.6.3 eliminates this vulnerability. Applying the patch 0e07414e9739b318cff9401a413a5fe849545325 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-19409). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• goauthentik

Name

• authentik

License

• open-source

Website

• Product: https://github.com/goauthentik/authentik/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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