CVE-2026-29191CRITICAL 9.3EPSS p31.8%

CVE-2026-29191CVE-2026-29191

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.

Scoring

CVSS 3.19.3 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
EPSS0.40% probability of exploitation · percentile 31.8% · 2026-06-19T12:03:05Z
Published2026-03-07
Last modified2026-03-10

Underlying weaknesses· 1

CWE-79

References

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

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')cwe-790%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.