A privilege escalation vulnerability in Authentik Security authentik through 2026.5.6 allows an attacker with a source-scoped SCIM provisioning token to gain superuser privileges by provisioning a SCIM group that matches an existing administrator group by name. The SCIM group ingest function adopts any existing group by name and replaces its membership without validating the source scope against the target group. An attacker can grant their provisioning token full IdP superuser access and lock out all existing administrators.
References
History

Thu, 13 Aug 2026 10:15:00 +0000

Type Values Removed Values Added
First Time appeared Authentik Security
Authentik Security authentik
Vendors & Products Authentik Security
Authentik Security authentik

Tue, 11 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 11 Aug 2026 11:30:00 +0000

Type Values Removed Values Added
Description A privilege escalation vulnerability in Authentik Security authentik through 2026.5.6 allows an attacker with a source-scoped SCIM provisioning token to gain superuser privileges by provisioning a SCIM group that matches an existing administrator group by name. The SCIM group ingest function adopts any existing group by name and replaces its membership without validating the source scope against the target group. An attacker can grant their provisioning token full IdP superuser access and lock out all existing administrators.
Title Authentik Security authentik - Privilege Escalation
Weaknesses CWE-269
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: TuranSec

Published: 2026-08-11T11:06:44.724Z

Updated: 2026-08-11T15:07:04.175Z

Reserved: 2026-08-10T10:32:49.080Z

Link: CVE-2026-72534

cve-icon Vulnrichment

Updated: 2026-08-11T15:06:59.450Z

cve-icon NVD

Status : Received

Published: 2026-08-11T12:17:38.610

Modified: 2026-08-11T16:17:34.713

Link: CVE-2026-72534

cve-icon Redhat

No data.