What is CVE-2026-41577?

CVE-2026-41577 is a high-severity vulnerability in Goauthentik Authentik, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.5/10. Published 2026-06-02.

How severe is CVE-2026-41577?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Goauthentik Authentik

CVE-2026-41577

authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, the SAML source response processor (ResponseProcessor.parse()) does not validate the Conditions element on assertions. NotBefore, NotOnOrAfter, and Au…

EPSS: 0.000 (0.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Goauthentik Authentik — versions < 2025.12.5, < 2026.2.3

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

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

Frequently asked questions

What is CVE-2026-41577?: CVE-2026-41577 is a high-severity vulnerability in Goauthentik Authentik, classified under Insufficient Verification of Data Authenticity. CVSS score: 7.5/10. Published 2026-06-02.
How severe is CVE-2026-41577?: High severity. CVSS v3 base score is 7.5 out of 10.