CVE-2026-72534 Authentik Security authentik - Privilege Escalation
An attacker with a SCIM token can escalate to superuser by adopting an admin group, locking out legitimate administrators.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-72534?
CVE-2026-72534 is a high-severity vulnerability in authentik, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-72534?
How do I fix CVE-2026-72534?
No fix has been published for CVE-2026-72534 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-72534 being exploited?
There is no known exploitation of CVE-2026-72534 in the wild and no public exploit code.
Sources
Also known as GHSA-phh7-mppp-4jx8.