CVE-2026-56667

7.3 highEPSS 0.4%

High (7.3). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.3 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2026-07-10
Modified: 2026-07-10
Record from: the NVD, synced 2026-10-19

References

https://github.com/zitadel/zitadel/commit/038265925a3b05ac1df8aad461ab071983e9eb85
https://github.com/zitadel/zitadel/releases/tag/v4.15.3
https://github.com/zitadel/zitadel/security/advisories/GHSA-5wcj-9wj4-j65h

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