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5.5
Authentik Token Exposed in URL
CVE-2025-52553
BIT-authentik-2025-52553
Summary
A security issue exists in older versions of Authentik, an open-source identity provider. If a malicious person gets the URL from a shared screen, they could potentially access the same session. To stay secure, update to version 2025.4.3 or 2025.6.3, or as a temporary fix, shorten the token's lifespan in the settings and enable 'Delete authorization on disconnect'.
What to do
- Update authentik to version 2025.6.3.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | goauthentik | authentik |
< 2025.4.3 >= 2025.6.0, < 2025.6.3 cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:* |
| Bitnami | – | authentik |
>= 2025.6.0, < 2025.6.3 Fix: upgrade to 2025.6.3
|
Original title
authentik has Insufficient Session verification for Remote Access Control endpoint access
Original description
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.
nvd CVSS3.1
9.6
nvd CVSS4.0
5.5
Vulnerability type
CWE-287
Improper Authentication
- https://github.com/goauthentik/authentik/commit/0e07414e9739b318cff9401a413a5fe8... Patch
- https://github.com/goauthentik/authentik/commit/65373ab21711d58147b5cb9276c5b587... Patch
- https://github.com/goauthentik/authentik/commit/7100d3c6741853f1cfe3ea2073ba0182... Patch
- https://github.com/goauthentik/authentik/security/advisories/GHSA-wr3v-9p2c-chx7 Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2025-52553 URL
Published: 16 Apr 2026 · Updated: 17 Apr 2026 · First seen: 7 Mar 2026