What is CVE-2026-49448?

CVE-2026-49448 is a critical-severity vulnerability in Goauthentik Authentik, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-06-02.

How severe is CVE-2026-49448?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Goauthentik Authentik

CVE-2026-49448

authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, the Source stage can be bypassed by sending an empty POST. This issue has been patched in versions 2025.12.6, 2026.2.4, and 2026.5.1.

Vulnerability class: Broken Authentication

EPSS: 0.000 (12.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Goauthentik Authentik — versions < 2025.12.6, < 2026.2.4, < 2026.5.1

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-49448?: CVE-2026-49448 is a critical-severity vulnerability in Goauthentik Authentik, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-06-02.
How severe is CVE-2026-49448?: Critical severity. CVSS v3 base score is 9.8 out of 10.