CVE-2026-29191
ZITADEL: 1-Click Account Takeover via XSS in /saml-post Endpoint
Description
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.
INFO
Published Date :
March 7, 2026, 3:15 p.m.
Last Modified :
March 10, 2026, 5:55 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update ZITADEL to version 4.12.0 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-29191.
| URL | Resource |
|---|---|
| https://github.com/zitadel/zitadel/security/advisories/GHSA-pr34-2v5x-6qjq | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-29191 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-29191
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-29191 vulnerability anywhere in the article.
-
Daily CyberSecurity
1-Click to Compromise: Critical 9.3 CVSS Flaw in ZITADEL Exposes Accounts to Full Takeover
Security researchers have disclosed a high-severity vulnerability in ZITADEL, the popular open-source identity and access management (IAM) platform. The flaw, tracked as CVE-2026-29191 with a CVSS sco ... Read more
The following table lists the changes that have been made to the
CVE-2026-29191 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 10, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:zitadel:zitadel:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.12.0 Added Reference Type GitHub, Inc.: https://github.com/zitadel/zitadel/security/advisories/GHSA-pr34-2v5x-6qjq Types: Patch, Vendor Advisory -
New CVE Received by [email protected]
Mar. 07, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N Added CWE CWE-79 Added Reference https://github.com/zitadel/zitadel/security/advisories/GHSA-pr34-2v5x-6qjq