PT-2026-57255 · Zitadel · Zitadel

CVE-2026-56667

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Published

2026-07-10

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Updated

2026-07-10

CVSS v3.1

7.3

High

VectorAV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions ZITADEL versions prior to 4.15.3
Description In the Login V2 OIDC and SAML FailedPrecondition error paths, the system returns loginSettings.defaultRedirectUri to router.push() without performing the isSafeRedirectUri check. This allows an organization or instance administrator to store a javascript or data URI, which can then execute in a user's browser when the affected login error path is triggered.
Recommendations Update to version 4.15.3.

Exploit

Fix

XSS

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Weakness Enumeration

Related Identifiers

CVE-2026-56667
GHSA-5WCJ-9WJ4-J65H

Affected Products

Zitadel