CVE-2026-85056High· 8.2▾ TwilightZITADEL is an open source identity management platform. From 4.0.0 until 4.16.1, ZITADEL Login V2 creates a browser session after password verification and can reuse that session for a later authentication request without verifying a use…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 45.1 · likelihood 0 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
ZITADEL is an open source identity management platform. From 4.0.0 until 4.16.1, ZITADEL Login V2 creates a browser session after password verification and can reuse that session for a later authentication request without verifying a user's enrolled TOTP, OTP, or U2F second factor. When the MFA step is abandoned and login starts again, session-validity checks require MFA only when the organization enables Force MFA or Force MFA for local users only, so a voluntarily enrolled factor can be skipped while completing an OIDC or SAML callback for a customer application. Login V1, the ZITADEL Console, Management and Admin APIs, and user self-management are not affected. This issue is fixed in version 4.16.1.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/zitadel/zitadel < 1.80.0-v2.20.0.20260717062356-56f4798ed31fPatched in:
github.com/zitadel/zitadel 1.80.0-v2.20.0.20260717062356-56f4798ed31fConnected by shared product, vendor, weakness, or advisory.
CVE-2026-85057High· 8.7ZITADEL is an open source identity management platform
CVE-2026-55672High· 7.4ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation)
CVE-2026-76081Medium· 5.5ZITADEL is an open source identity management platform
CVE-2026-56666Medium· 4.8ZITADEL is an open source identity management platform
CVE-2026-56668High· 8.1ZITADEL: Unauthorized Token Privilege Escalation in OAuth2 Token Exchange
CVE-2023-47111High· 7.3ZITADEL race condition in lockout policy execution