CVE-2026-42849

CVSS Score & Metrics

Base Score

9.3 / 10

Vector String

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

Vulnerability Description

authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, due to the implementation of stages in the SFE (Simple Flow Executor) in order to make the interface more compatible with legacy browsers, it was possible to use an XSS exploit in the AutosubmitStage. This issue has been patched in versions 2025.12.5 and 2026.2.3.

Vulnerability Details

Published Date

June 02, 2026

Last Modified

June 02, 2026

CWE ID

CWE-79

Source

NVD

Vendor

goauthentik

Product

authentik

External References

https://github.com/goauthentik/authentik/security/advisories/GHSA-pgff-5mx8-fqj3

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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