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CVE-2026-55385

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

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 gotenberg_host setting only as a syntactically valid URL. GotenbergPDFDriver::loadView later sends a multipart HTTP request containing rendered invoice, estimate, or payment HTML as document.html to that host without rejecting private, loopback, link-local, or reserved addresses. An owner can use PDF generation to reach internal services or cloud metadata endpoints, and a configured external host receives customer names, addresses, line items, totals, and company identifiers from subsequent PDF renders. This issue is fixed in version 2.4.0.

CVSS 6.8 · Medium · EPSS 0.5%

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