CVE-2026-55229

Gotenberg prior to 8.34.0 contains an SSRF/local-file disclosure in the /forms/libreoffice/convert endpoint. A specially crafted DOCX can cause LibreOffice to fetch external HTTP(S) resources (blind SSRF) and load local image resources during conversion, potentially exposing internal endpoints an...

GHSA-2MRG-35HW-X3X9 Gotenberg: SSRF via LibreOffice document processing

Summary Server-Side Request Forgery SSRF vulnerability affecting the /forms/libreoffice/convert endpoint in Gotenberg v8.33.0 running with the default configuration. By uploading a specially crafted DOCX document, an attacker can cause LibreOffice to automatically retrieve external resources duri...