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Medium severity6.1NVD Advisory· Published Jun 2, 2026· Updated Jun 4, 2026

CVE-2026-41569

CVE-2026-41569

Description

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 login link can supply a wreply value on a different origin that passes the check (e.g. https://portal.example.com.evil.tld/), causing the victim's browser to POST the signed WS-Federation login response to attacker-controlled infrastructure. This issue has been patched in version 2026.2.3.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • authentik/authentik2 versions
    cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*range: <2026.2.3
    • (no CPE)range: <2026.2.3
  • osv-coords
    pkg:bitnami/authentik
    Range: < 2026.2.3

Patches

Vulnerability mechanics

References

1

News mentions

1