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CVE-2026-29191 - Vulnerability Analysis

CriticalCVSS: 9.3

Last Updated: March 7, 2026

ZITADEL - Stored XSS

Published: March 7, 2026Updated: March 7, 2026Remote Exploitable

Overview

ZITADEL 4.0.0 to 4.11.1 contains a stored XSS vulnerability caused by improper input sanitization in the /saml-post login V2 interface, letting attackers perform account takeover via script execution, exploit requires victim interaction.

Severity & Score

Severity: Critical

CVSS Score: 9.3

Impact

Attackers can execute scripts to hijack user sessions, leading to account takeover.

Mitigation

Update to version 4.12.0 or later.

References

https://github.com/zitadel/zitadel/security/advisories/GHSA-pr34-2v5x-6qjq

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-29191
Severity: Critical
CVSS Score: 9.3
Type: stored_xss
Status: new

CWE

CWE-79

CVSS Metrics

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