CVE-2026-102981 Plane: Unauthenticated Workspace Invitation Token Leakage

Plane is an open-source project management tool. Prior to 1.4.0, self-hosted Plane deployments allow unauthenticated GET requests to api/workspaces/slug/invitations/pk/join/ through WorkspaceJoinEndpoint, whose WorkSpaceMemberInviteSerializer exposes the secret invitation token directly and throu...