CVE-2026-105639 Plane: Pre-auth workspace invitation hijack via email-squat and self-served invitation token leak in Plane

Plane is an open-source project management tool. Prior to 1.4.0, Plane's signup flow creates a logged-in User row for any submitted email without an out-of-band ownership check, while User.email is unique=True. The authenticated user can call GET /api/users/me/workspaces/invitations/, which retur...

CVE-2026-105639 Plane: Pre-auth workspace invitation hijack via email-squat and self-served invitation token leak in Plane

Plane is an open-source project management tool. Prior to 1.4.0, Plane's signup flow creates a logged-in User row for any submitted email without an out-of-band ownership check, while User.email is unique=True. The authenticated user can call GET /api/users/me/workspaces/invitations/, which retur...

CVE-2026-105639

The open-source project management tool Plane is vulnerable to a pre-auth workspace invitation hijack prior to version 1.4.0 . The flaw exists because the signup flow creates a logged-in user for any submitted email without an out-of-band ownership check, while the User.email field is unique. An ...

CVE-2026-105639 Plane: Pre-auth workspace invitation hijack via email-squat and self-served invitation token leak in Plane

Plane is an open-source project management tool. Prior to 1.4.0, Plane's signup flow creates a logged-in User row for any submitted email without an out-of-band ownership check, while User.email is unique=True. The authenticated user can call GET /api/users/me/workspaces/invitations/, which retur...