CVE-2026-86747: falha de média gravidade em grokability snipe-it

Snipe-IT is an open source IT asset management system. In versions up to and including 8.6.3, the report acceptance endpoints POST /reports/unaccepted_assets/sent_reminder (ReportsController::sentAssetAcceptanceReminder) and DELETE /reports/unaccepted_assets/{acceptanceId}/delete (ReportsController::deleteAssetAcceptance) are not correctly scoped when Full Multiple Company Support (FMCS) is enabled. In 8.6.3 the guard ReportsController::currentUserCanAccessAcceptance() early-exits with 'return true' when '! $user->company_id' is truthy, which is the case for every pivot-only user (a user associated with companies through the company_user pivot table whose scalar users.company_id column is NULL); versions prior to 8.6.3 lacked the guard altogether. As a result, an authenticated user holding the reports.view permission can send acceptance-reminder emails for, and permanently delete, any pending acceptance record in the install regardless of which company owns the underlying checkoutable. Deletion is destructive and forfeits the acceptance audit trail for the affected item, and the reminder email exposes limited cross-company acceptance context (item name and assignment metadata) to the recipient. Acceptance IDs are sequential integers and can be enumerated. This issue is fixed in version 8.7.0.