XSS in Zitadel

CVE-2026-29192

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 Default URI Redirect. This issue has been patched in version 4.12.0.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-29192: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

  • Zitadel — versions >= 4.0.0, < 4.12.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-29192?
CVE-2026-29192 is a high-severity vulnerability in Zitadel, classified under Cross-site Scripting. CVSS score: 7.7/10. Published 2026-03-07.
How severe is CVE-2026-29192?
High severity. CVSS v3 base score is 7.7 out of 10.