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CVE-2026-72537
8.8 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): High (H)
Activity log
- Created suggestion
Authentik Security authentik - Privilege Escalation
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.
References
Affected products
authentik
- =<2026.5.6
Matching in nixpkgs
pkgs.authentik
Authentication glue you need
pkgs.authentik-outposts.ldap
Authentik ldap outpost. Needed for the external ldap API
pkgs.authentik-outposts.proxy
Authentik proxy outpost which is used for HTTP reverse proxy authentication
Package maintainers
-
@jvanbruegge Jan van Brügge <supermanitu@gmail.com>
-
@rissson Marc Schmitt <marc.schmitt@risson.space>