[CVE-2026-109371] ZITADEL 3.0.0 before 4.18.0 contains a missing authentication vulnerability in the hosted Login V1 U…

Descripción técnica

ZITADEL 3.0.0 before 4.18.0 contains a missing authentication vulnerability in the hosted Login V1 UI, where the change-username handler acts on the account bound to a login flow before any factor is verified. Unauthenticated attackers can submit a victim's login name and then post a new username to rename any active human user, including administrators, locking them out.

Puntuación CVSS

Score: 8.2/10 — Severidad: HIGH — Estado NIST: Deferred

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

Debilidades (CWE)

CWE-306

Fuente oficial

Publicado en NIST NVD.