CVE-2026-72537
Last modified
CVE-2026-72537 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Authentik Security | authentik | <= 2026.5.6 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-72537?
How severe is CVE-2026-72537?
How do I fix CVE-2026-72537?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-72526A flaw was found in the multicloud-integrations component. T…9.9
- CVE-2026-7253IBM Sterling B2B Integrator and IBM Sterling File Gateway ar…6
- CVE-2026-72533An authentication bypass vulnerability in Portainer CE throu…8.8
- CVE-2026-72534A privilege escalation vulnerability in Authentik Security a…8.8
- CVE-2026-72535A missing authentication vulnerability in Chaskiq through co…8.6
- CVE-2026-72536A missing authentication vulnerability in Chaskiq through co…8.6
- CVE-2026-72538An argument injection vulnerability in PrefectHQ Prefect thr…8.8
- CVE-2026-72539An information disclosure vulnerability in Windmill Labs Win…6.5
- CVE-2026-7254IBM OPENBMC FW1110.00 through FW1110.11 is vulnerable to den…5.3
- CVE-2026-72540An insecure direct object reference vulnerability in PhotoPr…4.3
- CVE-2026-72541A missing authorization vulnerability in Windmill Labs Windm…6.5
- CVE-2026-72542A missing authorization vulnerability in Windmill Labs Windm…5.4
Are you affected by CVE-2026-72537?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST