CVE-2026-42591

Name: CVE-2026-42591
Creator: NVD / NIST
Published: 2026-05-14T16:16:22.163+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2026-42591 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.2/10

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

EPSS Probability

0.24%

15.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Thecodingmachine	Gotenberg	< 8.32.0

References

https://github.com/gotenberg/gotenberg/security/advisories/GHSA-rm4c-xj6x-49mwExploit, Vendor Advisory
https://github.com/gotenberg/gotenberg/security/advisories/GHSA-rm4c-xj6x-49mwExploit, Vendor Advisory

Timeline

Published: May 14, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-42591?

How severe is CVE-2026-42591?

CVE-2026-42591 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-42591?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-42591?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST