CVE-2026-102893

Zulip is an open-source team collaboration tool. In Zulip Server versions through 12.1, GenericOpenIdConnectBackend matches the identity provider email claim to an active account's deliveryemail without rejecting an explicitly false emailverified claim. If a configured identity provider returns a...

EUVD-2026-101287

Zulip is an open-source team collaboration tool. In Zulip Server versions through 12.1, GenericOpenIdConnectBackend matches the identity provider email claim to an active account's deliveryemail without rejecting an explicitly false emailverified claim. If a configured identity provider returns a...

CVE-2026-102893 Zulip: OpenID Connect authentication ignores the email_verified claim

Zulip is an open-source team collaboration tool. In Zulip Server versions through 12.1, GenericOpenIdConnectBackend matches the identity provider email claim to an active account's deliveryemail without rejecting an explicitly false emailverified claim. If a configured identity provider returns a...

CVE-2026-102893

In Zulip Server versions through 12.1 , a vulnerability exists in the GenericOpenIdConnectBackend component. The system fails to reject an explicitly false email_verified claim when matching an identity provider's email claim to an active account's delivery_email . This allows an attacker to log ...