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CVE-2026-41569

6.1 MEDIUM

authentik is an open-source identity provider

Published: 2026-06-02 · Last updated: 2026-06-04

Severity and scoring

CVSS
6.1 MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
CWE-601

Affected products

VendorProduct
goauthentikauthentik

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.

Source: NVD

References

Related CVEs

Same vendor

  • CVE-2026-49448 — authentik is an open-source identity provider (9.8 CRITICAL)
  • CVE-2026-49443 — authentik is an open-source identity provider (8.8 HIGH)
  • CVE-2026-47201 — authentik is an open-source identity provider (8.5 HIGH)
  • CVE-2026-42849 — authentik is an open-source identity provider (9.3 CRITICAL)
  • CVE-2026-41577 — authentik is an open-source identity provider (7.5 HIGH)

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