CVE-2026-29191
ZITADEL has 1-Click Account Takeover via XSS in /saml-post Endpoint in github.com/zitadel/zitadel
9.3
CRITICAL
CVSS 3.1
EPSS 0.02%
Description
ZITADEL has 1-Click Account Takeover via XSS in /saml-post Endpoint in github.com/zitadel/zitadel. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/zitadel/zitadel from v4.0.0 before v4.12.0.
How to fix CVE-2026-29191
To remediate CVE-2026-29191, upgrade the affected package to a fixed version below.
- —upgrade to 4.12.0 or later
- —no fix listed
- —upgrade to 4.12.0 or later
Is CVE-2026-29191 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 4.0.0, < 4.12.0
- from 0
- >= 4.0.0, < 4.12.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |