CVE-2026-72537 PUBLISHED

Authentik Security authentik - Privilege Escalation

Assigner: TuranSec
Reserved: 10.08.2026 Published: 11.08.2026 Updated: 11.08.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Product Status

Vendor Authentik Security
Product authentik
Versions
  • affected from 0 to 2026.5.6 (incl.)

Credits

  • Bobur Abdugafforov (Mahadsec) finder

References

Problem Types

  • CWE-269: Improper Privilege Management CWE