medium5.5
CVE-2026-109374
ZITADEL 3.0.0 before 4.19.2 contains a privilege escalation vulnerability in OIDC token exchange that allows end-user impersonators to impersonate administrato…
Impact
ZITADEL 3.0.0 before 4.19.2 contains a privilege escalation vulnerability in OIDC token exchange that allows end-user impersonators to impersonate administrators including IAM_OWNER by bypassing the admin.impersonation check. Attackers holding IAM_END_USER_IMPERSONATOR or ORG_END_USER_IMPERSONATOR roles can sign in to relying applications as administrators with their roles and claims.
Affected products
| Product | Affected versions |
|---|---|
| ZITADEL 3.0.0 | before 4.19.2 |
Versions were read from the advisory text. No structured product data has been published for this record yet.