Authentik

authentik is an open-source identity provider. [CVSS 8.8 HIGH]

Authentik Proxy Provider allows authentication bypass through malformed cookies when deployed with Traefik or Caddy as a reverse proxy, enabling attackers to access protected applications by circumventing forward authentication checks. The vulnerability stems from improper cookie validation that prevents the setting of required authentik-specific X-Authentik-* headers, potentially granting unauthorized access depending on the backend application's configuration. Affected versions prior to 2025.10.4 and 2025.12.4 are vulnerable; patches are available in the specified releases.

Code injection in authentik identity provider from 2021.3.1 through multiple versions. Users with delegated permissions can inject code. Patch available.

authentik is an open-source Identity Provider. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

authentik is an open-source Identity Provider. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity.

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.

authentik is an open-source identity provider. Rated high severity (CVSS 8.0), this vulnerability is remotely exploitable, no authentication required.

Authentik project is vulnerable to Stored XSS attacks through uploading crafted SVG files that are used as application icons. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.

Authentik is an open-source Identity Provider. Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.