Risk Letters

Exploited vulnerability

CVE-2026-42596

TLP:CLEAR

thecodingmachine gotenberg Server-Side Request Forgery (SSRF)

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, the default deny-lists used by Gotenberg's downloadFrom feature and webhook feature are bypassable. Because the filter is regex-based and case-sensitive, an unauthenticated attacker can supply URLs such as http://[::ffff:127.0.0.1]:... and reach loopback or private HTTP services that the default deny-list is intended to bl

Facts

  • Vendor: thecodingmachine
  • Product: Gotenberg is
  • CVSS: 9.4
  • EPSS (probability of exploitation within 30 days): 1.6 %
  • First known exploitation: 12 October 2026
  • First seen by Risk Letters: 14 May 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD