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

Published 2026-06-02 · last modified 2026-07-22.

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.

EPSS exploit prediction

EPSS: 0.006 (46.8th percentile), scored 2026-10-18.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002

Affected products

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

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

github.com/goauthentik/authentik/security/advisories/GHSA-xp7f-xjjx-gwm8 (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.