CVE-2026-42591: Gotenberg is a Docker-powered stateless API for PDF files

Q: How do I fix CVE-2026-42591?

gotenberg: upgrade to 8.32.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-42591 being exploited?

CVE-2026-42591 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-2026-42591 affect?

CVE-2026-42591 affects gotenberg. Severity is high (CVSS 8.2). 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 the

Q: How urgent is CVE-2026-42591?

Priority 48/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

This week

HIGH 8.2REMOTEWATCHLISTUPGRADE

CVE-2026-42591 is a high-severity flaw (CVSS 8.2) affecting gotenberg. 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 8.32.0, 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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-05-14
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: thecodingmachine

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-14 16:16 UTCPublished CVE record published
2026-06-17 10:48 UTCUpdated Record last modified

thecodingmachine gotenberg UPGRADE

Affected: < 8.32.0

Fixed in: 8.32.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy gotenberg || rpm -q gotenberg || gotenberg --version

2. UPGRADE to 8.32.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gotenberg

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gotenberg

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-42591?

gotenberg: upgrade to 8.32.0. Exact commands for each OS are on this page.

Is CVE-2026-42591 being exploited?

CVE-2026-42591 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-2026-42591 affect?

CVE-2026-42591 affects gotenberg. Severity is high (CVSS 8.2). 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 the

How urgent is CVE-2026-42591?

Priority 48/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Docker vulnerabilities · LibreOffice vulnerabilities

Related CVEs

CVE-2026-40280 HIGH 7.5 UPGRADE Gotenberg is an API-based document conversion tool
CVE-2026-39383 HIGH 7.2 UPGRADE Gotenberg is an API-based document conversion tool
CVE-2026-42597 MEDIUM 5.9 UPGRADE Gotenberg is a Docker-powered stateless API for PDF files
CVE-2026-42596 CRITICAL 9.4 UPGRADE Gotenberg is a Docker-powered stateless API for PDF files
CVE-2026-42595 HIGH 8.6 UPGRADE Gotenberg is a Docker-powered stateless API for PDF files

References

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