CVE-2026-105207ZITADEL before 4.17.3 Account Takeover via External IdP Linking

Descripción

ZITADEL 3.0.0 through 3.4.15 and 4.0.0 before 4.17.3 creates links between user accounts and external identity providers without verifying a primary factor or the caller's permission, including on identify-only Login V2 sessions and via the User Service V2 AddIDPLink endpoint. An unauthenticated attacker knowing a victim's login name can bind their own external IdP identity to the victim's account and then sign in as the victim.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• GitHub Security Advisory (GHSA-g8gj-gq47-xgf4) vendor-advisory
• VulnCheck Advisory: ZITADEL before 4.17.3 Account Takeover via External IdP Linking third-party-advisory