CVE-2026-56311

Capgo before 12.128.2 contains an authorization bypass vulnerability in the public.get_current_plan_max_org RPC function that allows unauthenticated attackers to retrieve arbitrary organization plan limits. Attackers can call the RPC endpoint with any organization UUID using only the public Supabase key to disclose billing information including MAU, bandwidth, storage, and build time limits for any organization.