high7.4
CVE-2026-119128
ZITADEL 4.0.0 before 4.19.5 contains an authentication bypass vulnerability in the Login V2 UI that allows unauthenticated attackers to set the first credentia…
Impact
ZITADEL 4.0.0 before 4.19.5 contains an authentication bypass vulnerability in the Login V2 UI that allows unauthenticated attackers to set the first credential of users lacking any authentication method. Attackers can compute a valid verificationCheck cookie from the user ID and browser fingerprint to set a password, register a passkey, or link an identity provider, taking over the account.
Affected products
| Product | Affected versions |
|---|---|
| ZITADEL 4.0.0 | before 4.19.5 |
Versions were read from the advisory text. No structured product data has been published for this record yet.