CVE-2026-29192 — zitadel
HIGHCVE-2026-29192 is a high-severity (CVSS 7.7) Cross-site Scripting (XSS) vulnerability in github.com/zitadel/zitadel/v2. A fix is available for github.com/zitadel/zitadel/v2 — see the affected versions and patch details below.
ZITADEL: Stored XSS via Default URI Redirect Leads to Account Takeover
Exploitation Status
No confirmed exploitation observed yet
- A successful exploit gives an attacker total control of the affected component, not partial access.
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-29192.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
github.com/zitadel/zitadel/v2🐹github.com/zitadel/zitadelReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Summary
A vulnerability in Zitadel's login V2 interface was discovered, allowing for possible account takeover.
Impact
Zitadel allows organization administrators to change the default redirect URI for their organization. This setting enables them to redirect users to an arbitrary location after they log in.
Due to missing restrictions and improper handling, malicious javascrtipt code could be executed in Zitadel login UI (v2) using the users’ browser.
An unauthenticated remote attacker can exploit this Stored XSS vulnerability, reset the password of their victims, and take over their accounts.
It's important to note that this specific attack vector is mitigated for accounts that have Multi-Factor Authentication (MFA) or Passwordless authentication enabled.Stored XSS vulnerability.
Affected Versions
Systems running one of the following versions are affected:
- 4.x:
4.0.0through4.11.1(including RC versions)
Patches
The vulnerability has been addressed in the latest releases. The login UI prevents execution of such code. Additionally, the page to change the password, now always requires the user's current password regardless of the state of the authenticated session.
4.x: Upgrade to >= 4.12.0
Workarounds
The recommended solution is to upgrade to a patched version.
Questions
If there are any questions or comments about this advisory, please send an email to [email protected]
Credits
ZITADEL extends thanks once again to Amit Laish from GE Vernova for finding and reporting the vulnerability.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/zitadel/zitadel/v2 | ≥ 4.0.0&&< 4.12.0 | 4.12.0go get github.com/zitadel/zitadel/v2@v4.12.0 |
| 🐹Go | github.com/zitadel/zitadel | ≥ 4.0.0&&< 4.12.0 | 4.12.0go get github.com/zitadel/zitadel@v4.12.0 |
Affected Products
zitadelzitadelDetection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/zitadel/zitadel/v2, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/zitadel/zitadel/v2 to 4.12.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-29192 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.
Frequently Asked Questions
Is CVE-2026-29192 in your dependencies?
Find it across Go, including transitive dependencies.