CVE-2026-50008: parse-server: Server option routeAllowList is bypassable through batch sub-requests

The routeAllowList server option restricts external client access to a configured list of REST API routes. The check is only enforced as Express middleware against the outer HTTP request URL, so the /batch handler dispatches each sub-request to the internal router without re-running the allow-list check. An external caller whose outer route matches batch can issue batch sub-requests to any REST API route that the operator omitted from the allow-list.

Authentication, ACL, CLP, and other inner-route authorization controls still apply — only the operator-configured route firewall is bypassed.