CVE-2026-56667

HIGH

ZITADEL: Stored XSS via Default URI Redirect in Login V2

Title source: cna
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v3 7.3
EPSS 0.0022
EPSS Percentile 13.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-79
Status published
Products (1)
zitadel/zitadel < 4.15.3
Published Jul 10, 2026
Tracked Since Jul 10, 2026