CVE-2026-29191: Zitadel

Critical severity, CVSS 9.3. EPSS: 0.4% chance of exploitation in the next 30 days.

ZITADEL is an open source identity management platform. From version 4.0.0 to 4.11.1, a vulnerability in Zitadel's login V2 interface was discovered that allowed a possible account takeover via XSS in /saml-post Endpoint. This issue has been patched in version 4.12.0.

Affected products

• Zitadel Zitadel: from 4.0.0, before 4.12.0 (fixed in 4.12.0)

Published 2026-03-07. Last modified 2026-06-17.