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.
History

Thu, 04 Jun 2026 20:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*

Wed, 03 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 03 Jun 2026 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Goauthentik
Goauthentik authentik
Vendors & Products Goauthentik
Goauthentik authentik

Wed, 03 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
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.
Title authentik: Reflected XSS in SFE AutosubmitStage allows IDP account takeover
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-06-02T20:30:43.839Z

Updated: 2026-06-03T19:05:26.760Z

Reserved: 2026-04-30T16:44:48.378Z

Link: CVE-2026-42849

cve-icon Vulnrichment

Updated: 2026-06-03T19:04:56.856Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-02T21:16:27.670

Modified: 2026-06-04T20:01:26.543

Link: CVE-2026-42849

cve-icon Redhat

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