CVE-2026-119128 — Vulnerability intelligence

zitadel — zitadel

Published: 2026-10-29T15:58:10.483Z

CVSS

9.1

CISA KEV

Not listed; not proof of no exploitation

Original source text (not a translation)

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.

Sources

• CVE-2026-119128
• Original advisory
• Original advisory
• CVE-2026-119128