Open Redirect in Goauthentik Authentik

CVE-2026-41569

authentik is an open-source identity provider. Prior to version 2026.2.3, the WS-Federation provider validates the user-supplied wreply parameter using a raw string prefix check rather than proper URL parsing. An attacker who can craft a l…

Vulnerability class: Open Redirect

EPSS: 0.000 (14.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-41569?
CVE-2026-41569 is a medium-severity vulnerability in Goauthentik Authentik, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 6.1/10. Published 2026-06-02.
How severe is CVE-2026-41569?
Medium severity. CVSS v3 base score is 6.1 out of 10.