CVE-2026-42595

Description

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, Gotenberg's Chromium URL-to-PDF endpoint (/forms/chromium/convert/url) has no default protection against HTTP/HTTPS-based SSRF. The default deny-list regex only blocks file:// URIs. An unauthenticated attacker can point Chromium at any internal IP — including loopback, RFC 1918 ranges, and cloud metadata endpoints — and receive the response rendered as a PDF. Additionally, even when operators configure a custom deny-list, the protection is bypassed via HTTP redirects. Gotenberg's Chromium instance follows 302 redirects from an attacker-controlled external URL to internal targets without re-validating the redirect destination against the deny-list. This vulnerability is fixed in 8.32.0.

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Produits concernés

• gotenberg
• Thecodingmachine gotenberg

Scores CVSS

Faiblesses (CWE)

• CWE-918

Références

• https://github.com/gotenberg/gotenberg/security/advisories/GHSA-chwh-f6gm-r836 ExploitVendor Advisory
• https://github.com/gotenberg/gotenberg/security/advisories/GHSA-chwh-f6gm-r836 ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories