CVE-2026-55385 InvoiceShelf: SSRF via unvalidated Gotenberg PDF renderer host in PDF configuration

InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.4.0, InvoiceShelf's PDFConfigurationRequest.php validates the owner-controlled gotenberghost setting only as a syntactically valid URL...