CVE-2026-40172
highPriorität · verfolgen · 0EPSS 0.005 · 46. PerzentilEUUSEPSS · bewertet 2026-10-27
authentik is an open-source identity provider. In versions prior to 2025.12.5 and 2026.2.0-rc1 through 2026.2.2, the PATCH /api/v3/core/users/{pk}/ API allows a caller with change_user on a target user to assign arbitrary groups through UserSerializer, including groups with is_superuser=True, without requiring enable_group_superuser, leading to privilege escalation. This bypasses the stricter permission model enforced in group-management paths and enables delegated user-management permissions to escalate target users to administrator-equivalent privilege. Users with permissions to update groups or permissions to update users are able to add themselves or other users they have permissions on to users which have superuser permissions. This issue has been fixed in versions 22025.12.5 and 2026.2.3.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (4)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- BIT-authentik-2026-40172authentik: Privilege Escalation via User PATCH: Superuser Group Assignment Bypasses enable_group_superuser2026-06-01vendor · osvUS
authentik is an open-source identity provider. In versions prior to 2025.12.5 and 2026.2.0 through 2026.2.2, the PATCH /api/v3/core/users/{pk}/ API allows a caller with change_user on a target user to assign arbitrary groups through UserSerializer, including groups with is_superuser=True, without requiring enable_group_superuser, leading to privilege escalation. This bypasses the stricter permission model enforced in group-management paths and enables delegated user-management permissions to escalate target users to administrator-equivalent privilege. Users with permissions to update groups or permissions to update users are able to add themselves or other users they have permissions on to users which have superuser permissions. This issue has been fixed in versions 22025.12.5 and 2026.2.3.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (10)
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/goauthentik/authentik/releases/Patchcnnvd
- https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.5cnnvd
- https://github.com/goauthentik/authentik/releases/tag/version%2F2026.2.3cnnvd
- https://github.com/goauthentik/authentik/security/advisories/GHSA-h6x7-hjjc-wjc9cnnvd
- https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.5enisa_euvd
- https://github.com/goauthentik/authentik/releases/tag/version%2F2026.2.3enisa_euvd
- https://github.com/goauthentik/authentik/security/advisories/GHSA-h6x7-hjjc-wjc9enisa_euvd
- https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.5nvd
Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan