CVE-2026-29191 json
ZITADEL: 1-Click Account Takeover via XSS in /saml-post Endpoint
published 8mo ago modified 4mo ago also EUVD-2026-10148 , GHSA-pr34-2v5x-6qjq , GO-2026-4607
- cvss
- 9.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 39%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/zitadel/zitadel 4.12.0
- go github.com/zitadel/zitadel/v2 4.12.0
- zitadel zitadel 4.12.0
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260317T205859-150000.1.152.1
suse advisories SUSE-SU-2026:1042-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
Is CVE-2026-29191 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8mo ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
| GitHub | 3.1 | 9.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/zitadel/zitadel | >=4.0.0, <4.12.0 all versions |
4.12.0 |
| go | github.com/zitadel/zitadel/v2 | >=4.0.0, <4.12.0 |
4.12.0 |
Affected products
- zitadel zitadel
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/zitadel/zitadel/security/advisories/GHSA-pr34-2v5x-6qjq
web, patch, vendor-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-29191
advisory
-
github.com
/zitadel/zitadel
package
Sources
- CVE List CVE-2026-29191
- GitHub Advisory GHSA-pr34-2v5x-6qjq
- NVD CVE-2026-29191
- OSV GO-2026-4607
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.