CVE-2026-55229: Gotenberg is a Docker-powered stateless API for PDF files

Q: How do I fix CVE-2026-55229?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Q: Is CVE-2026-55229 being exploited?

CVE-2026-55229 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-55229 affect?

CVE-2026-55229 affects affected software. Severity is high (CVSS 7.5). 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 lo

Q: How urgent is CVE-2026-55229?

Priority 58/100. High severity; CISA SSVC: public proof of concept; Remotely exploitable, no login, no user action; On your watchlist

This month

HIGH 7.5REMOTEWATCHLIST

CVE-2026-55229 is a high-severity flaw (CVSS 7.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
CISA SSVC: public proof of concept
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-07-10
Last modified	2026-07-13

Publisher (CNA): GitHub, Inc.

Last updated 2026-07-13 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-07-10 21:16 UTCPublished CVE record published
2026-07-13 19:21 UTCUpdated Record last modified

Exact fixes by distribution

Go · github.com/gotenberg/gotenberg/v8 · FIXED · 8.34.0 · vulnerable: < 8.34.0 · source

go get github.com/gotenberg/gotenberg/v8@v8.34.0 go list -m github.com/gotenberg/gotenberg/v8

Fedora 46 · arm-none-eabi-binutils-cs · FIXED · 2.47-1.fc46 · FEDORA-2026-7498616952 · source

sudo dnf upgrade --advisory=FEDORA-2026-7498616952

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/gotenberg/gotenberg/security/advisories/GHSA-2mrg-35hw-x3x9
Nuclei scan template: Gotenberg < 8.34.0 - Local File Disclosure

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-55229?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-55229 being exploited?

CVE-2026-55229 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-55229 affect?

CVE-2026-55229 affects affected software. Severity is high (CVSS 7.5). 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 lo

How urgent is CVE-2026-55229?

Priority 58/100. High severity; CISA SSVC: public proof of concept; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Docker vulnerabilities · LibreOffice vulnerabilities

References

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