CVE•Published 2026-06-02•Modified 2026-06-04•0 articles on news•5 live references•NVD data

CVE-2026-41569Goauthentik · Authentik

Vulnerability data via NVD (ingested)

CVSS v3.1

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS percentile

Exploit Prediction Scoring System · top 85% of all CVEs

Weaknesses (CWE)

CWE-601URL Redirection to Untrusted Site ('Open Redirect')

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.

Timeline

Published 2026-06-02

Modified 2026-06-04

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag795 hosts

vuln:CVE-2026-41569

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Goauthentik Authentik"

All exposed Goauthentik Authentik instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Authentik"

HTTP body or banner mentions "Authentik" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-41569