
🔴 zitadel: account takeover in Login V2 via forgeable cookie (CVE-2026-119128) An unauthenticated attacker can forge a verification cookie to take over accounts with no login method set up. Patch → 4.19.5 https://cve.now/CVE-2026-119128
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NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE

🔴 zitadel: account takeover in Login V2 via forgeable cookie (CVE-2026-119128) An unauthenticated attacker can forge a verification cookie to take over accounts with no login method set up. Patch → 4.19.5 https://cve.now/CVE-2026-119128