CVE-2026-29191CWE-79

ZITADEL: 1-Click Account Takeover via XSS in /saml-post Endpoint

Critical · published March 7, 2026

CVSS v3.1
9.3
EPSS
0%
Percentile
33.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.3 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00399 · 33.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-03-07T15:07Z
EPSS history
Timeline
  • 07 MAR 15:07Z
    ZITADEL: 1-Click Account Takeover via XSS in /saml-post Endpoint
    cvelistv5