CVE-2026-56666

Published: Jul 10, 2026Modified: Jul 13, 2026Deferred

4.8

Vector

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

Exploitability: 2.2 / Impact: 2.5

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

CWE-287

Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (3)

https://github.com/zitadel/zitadel/commit/c97012f0c5dc2fe960ae6e940cbea23229f0557f

Source: security-advisories@github.com

https://github.com/zitadel/zitadel/releases/tag/v4.15.3

Source: security-advisories@github.com

https://github.com/zitadel/zitadel/security/advisories/GHSA-992q-9gwp-7r79

Source: security-advisories@github.com

Timeline

No history available yet.