CVE-2026-55229

Gotenberg: SSRF via LibreOffice document processing

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.34.0, Gotenberg's /forms/libreoffice/convert endpoint allows a specially crafted document to cause LibreOffice to automatically retrieve external HTTP(S) resources and local file resources during document conversion, enabling blind SSRF and limited local file disclosure via linked image resource loading. This issue is fixed in version 8.34.0.

Affected

gotenberg

CVSS v3.1 GITHUB

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

1.51% chance of exploitation in the next 30 days, 74th percentile

Nuclei

high · CWE-918

Published

2026-07-10

Updated

2026-07-13

Proof-of-concept exploits (1)

• advisories/GHSA-2mrg-35hw-x3x9

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-55229.yaml

References

• CVE Record
• NVD entry