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OpenAdvisories
High · 7.3 CVE-2026-56667 EUVD-2026-42964

ZITADEL: Stored XSS via Default URI Redirect in Login V2

Published Jul 10, 2026 · Updated Jul 10, 2026 · Assigned by GitHub_M

Description

ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL Login V2 OIDC and SAML FailedPrecondition error paths return loginSettings.defaultRedirectUri to router.push without applying the isSafeRedirectUri check, allowing an organization or instance administrator to store a javascript or data URI that can execute in a user's browser when an affected login error path is reached. This issue is fixed in version 4.15.3.

Affected products

VendorProductAffectedFixed
zitadel zitadel < 4.15.3 —

References