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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-42849

authentik: Reflected XSS in SFE AutosubmitStage allows IDP account takeover

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Status
Published
Published
Updated
Assigning organization
GitHub_M

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

goauthentik authentik

  • < 2025.12.5affected
  • < 2026.2.3affected

References