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OpenAdvisories
High · 8.8 CVE-2026-49443 EUVD-2026-34028

authentik: `UserSourceConnection.user` and `GroupSourceConnection.group` are changeable through the API

Published Jun 2, 2026 · Updated Jun 3, 2026 · Assigned by GitHub_M

Description

authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, an attacker with the ability to change a source connection, and an account in one of the configured sources can log into any account. This issue has been patched in versions 2025.12.6, 2026.2.4, and 2026.5.1.

Affected products

VendorProductAffectedFixed
goauthentik authentik < 2025.12.6, < 2026.2.4, < 2026.5.1 —

References