CVE-2026-55385
mediumInvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates.
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:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/InvoiceShelf/InvoiceShelf/commit/d615cfb4ff4841a3b8cda7fc850a2bb335521f... security-advisories@github.com
- https://github.com/InvoiceShelf/InvoiceShelf/pull/664 security-advisories@github.com
- https://github.com/InvoiceShelf/InvoiceShelf/releases/tag/2.4.0 security-advisories@github.com
- https://github.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-mfxg-qphw-3f3g security-advisories@github.com
- https://github.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-mfxg-qphw-3f3g 134c704f-9b21-4f2e-91b3-4a467353bcc0