CVE-2026-56667CWE-79

ZITADEL: Stored XSS via Default URI Redirect in Login V2

High · published July 10, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
30.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00379 · 30.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-10T17:25Z
EPSS history
Timeline
  • 10 JUL 17:25Z
    ZITADEL: Stored XSS via Default URI Redirect in Login V2
    cvelistv5