A privilege escalation vulnerability in Authentik Security authentik through 2026.5.6 allows an attacker with a source-scoped SCIM provisioning token to take over any user account including superusers by provisioning a SCIM user that matches an existing local user by username. The SCIM user ingest function adopts pre-existing local accounts by username without validating scope boundaries. An attacker can rewrite or delete any account, including the superuser, using only a limited provisioning credential.

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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 13:30:00 +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 take over any user account including superusers by provisioning a SCIM user that matches an existing local user by username. The SCIM user ingest function adopts pre-existing local accounts by username without validating scope boundaries. An attacker can rewrite or delete any account, including the superuser, using only a limited provisioning credential.
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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: TuranSec

Published:

Updated: 2026-08-11T12:40:39.574Z

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

Link: CVE-2026-72537

cve-icon Vulnrichment

Updated: 2026-08-11T12:40:21.853Z

cve-icon NVD

Status : Deferred

Published: 2026-08-11T12:17:38.977

Modified: 2026-09-03T17:51:46.420

Link: CVE-2026-72537

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T09:54:50Z

Weaknesses