CVE-2024-21637: Goauthentik Authentik

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with `response_mode=form_post`. This relatively user could use the described attacks to perform a privilege escalation. This vulnerability has been patched in versions 2023.10.6 and 2023.8.6.

Affected products

• Goauthentik Authentik: from 2023.8.0, before 2023.8.6 (fixed in 2023.8.6); from 2023.10.0, before 2023.10.6 (fixed in 2023.10.6)

Published 2024-01-11. Last modified 2026-06-17.