CVE-2026-56666
Medium · 4.8CVSS
4.8
EPSS
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Published
Jul 10, 2026
CISA due date
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The record
ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external identity provider handler checks that the local user's email is verified but does not verify that the external IdP confirmed ownership of the same email before auto-linking by email, allowing a permissive provider account with a victim email address to be linked to the victim's local account. This issue is fixed in version 4.15.3.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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