CVE-2026-29192 ZITADEL: Stored XSS via Default URI Redirect Leads to Account Takeover

What is CVE-2026-29192?

CVE-2026-29192 is a high-severity cross-site scripting vulnerability in zitadel, published on 7 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

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 Default URI Redirect. This issue has been patched in version 4.12.0.

Weakness: CWE-79

Which versions are affected by CVE-2026-29192?

5 open source packages ship an affected version, including github.com/zitadel/zitadel and github.com/zitadel/zitadel/v2. It affects 1 product.

Products include Zitadel Zitadel.

How do I fix CVE-2026-29192?

Upgrade github.com/zitadel/zitadel to 4.12.0 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-29192 being exploited?

There is no known exploitation of CVE-2026-29192 in the wild and no public exploit code.

Other vulnerabilities in zitadel

• CVE-2026-29191 ZITADEL: 1-Click Account Takeover via XSS in /saml-post Endpoint Critical 9.3
• CVE-2025-67494 ZITADEL Vulnerable to Unauthenticated Full-Read SSRF via V2 Login Critical 9.3
• CVE-2025-27507 IDOR Vulnerabilities in ZITADEL's Admin API that Primarily Impact LDAP Configurations Critical 9.0
• CVE-2025-64103 Zitadel Bypass Second Authentication Factor High 8.7
• CVE-2025-31123 Zitadel Expired JWT Keys Usable for Authorization Grants High 8.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-6rx5-m2rc-hmf7, GO-2026-4605.