CVSS 3.1
9.3 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:NCVE-2026-29191
Critical (9.3) in zitadel zitadel. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in github.com/zitadel/zitadel 4.12.0.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 36% of CVEs (scores of 2026-10-31)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Affected
- zitadel:zitadel
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-pr34-2v5x-6qjq | Go | github.com/zitadel/zitadel | >=4.0.0 <4.12.0 | 4.12.0 |
| GHSA-pr34-2v5x-6qjq | Go | github.com/zitadel/zitadel/v2 | >=4.0.0 <4.12.0 | 4.12.0 |
| GO-2026-4607 | Go | github.com/zitadel/zitadel | all versions | no fix published |