High severity8.2GHSA Advisory· Published May 14, 2026· Updated May 18, 2026

CVE-2026-42591

Description

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the LibreOffice conversion endpoint (/forms/libreoffice/convert) passes uploaded documents directly to LibreOffice without inspecting their content. LibreOffice then fetches any embedded external URLs on its own, completely bypassing the SSRF filters. This vulnerability is fixed in 8.32.0.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
github.com/gotenberg/gotenberg/v8Go	<= 8.31.0	—

Affected products

Gotenberg/GotenbergGHSA2 versions
<= 8.31.0+ 1 more
- (no CPE)range: <= 8.31.0
- cpe:2.3:a:thecodingmachine:gotenberg:*:*:*:*:*:*:*:*range: <8.32.0
ghsa-coords
pkg:golang/github.com/gotenberg/gotenberg/v8
Range: <= 8.31.0

Patches

Vulnerability mechanics

References

github.com/gotenberg/gotenberg/security/advisories/GHSA-rm4c-xj6x-49mwnvdExploitVendor AdvisoryWEB
github.com/advisories/GHSA-rm4c-xj6x-49mwghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-42591ghsaADVISORY

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