CVE-2026-116492: Frappe CRM before 1.89.1 Missing Authorization via Phone Lookup API

Frappe CRM app before 1.89.1 contains a missing authorization vulnerability that allows authenticated low-privileged users to read CRM Lead records they are not permitted to access by querying the getcontactbyphonenumber API, which performs raw database queries without invoking the permission system. Attackers can supply a known phone number to the crm.integrations.api.getcontactbyphonenumber endpoint to retrieve full lead details otherwise blocked by standard API and UI access controls, resulting in unauthorized disclosure of sensitive CRM data.