by Kastro
Paper/Archive/CVE-2026-29191

CVE-2026-29191

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

EPSS 0.4%CVSS 9.3
critical.is priorityof 100
35
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 36.2.362 × 207.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
zitadel>= 4.0.0, < 4.12.0–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/zitadel/zitadel/security/advisories/GHSA-pr34-2v5x-6qjq