CVE-2026-94609
HighPublished
authentik: Privilege Escalation to Superuser via Group Hierarchy
- Published
- Sep 24, 2026
- Updated
- Sep 28, 2026
- Assigning CNA
- GitHub_M
- Evidence observed
- Sep 24, 2026
Primary CVSS
8.8/ 10High
authentik: Privilege Escalation to Superuser via Group Hierarchy
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7, and 2026.8.2, an account with delegated permission to manage a group, group membership, or a user can grant superuser status to an account or assign an existing role to a group without holding the permissions that gate those privileges. Group hierarchy checks do not consistently account for superuser status inherited from ancestor groups, and role assignment to a group lacks the required authorization check. Only deployments that delegate these management capabilities to accounts that are not full administrators are affected. This issue is fixed in versions 2026.2.7, 2026.5.7, and 2026.8.2.
Write-up and proof-of-concept for CVE-2026-94609, an authentik privilege-escalation flaw letting users with add_user_to_group join superuser groups via the Groups API.
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