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    CVE-2026-42595

    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.

    Published:May 14, 2026
    Last Modified:May 18, 2026
    EPS:May 14, 2026
    EPSS Score:0.00058
    CVSS Score:8.6

    Affected Products

    Vendor
    Gotenberg
    Product
    Gotenberg
    Vendor
    Thecodingmachine
    Product
    Gotenberg

    Exploits

    https://github.com/gotenberg/gotenberg/security/advisories/GHSA-chwh-f6gm-r836https://github.com/gotenberg/gotenberg/security/advisories/GHSA-chwh-f6gm-r836

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-44829 (CVSS 8.8) — Gotenberg is a Docker-powered stateless API for PDF files. In 8.32.0 and earlier, filename handling in pkg/mod…
    CVE-2026-45742 (CVSS 7.5) — Gotenberg is a Docker-powered stateless API for PDF files. From 8.10.0 until 8.33.0, the newContext function i…
    CVE-2026-45741 (CVSS 7.5) — Gotenberg is a Docker-powered stateless API for PDF files. In 8.32.0 and earlier, the IsPublicIP function in p…
    CVE-2026-55229 (CVSS 7.5) — Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.34.0, Gotenberg's /forms/libreoffice/con…
    CVE-2026-42590 (CVSS 8.2) — Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.30.0, The ExifTool metadata write blockl…
    CVE-2026-42597 (CVSS 5.9) — Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the /forms/chromium/convert/url an…
    CVE-2026-42594 (CVSS 7.5) — Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the webhook middleware spawns a go…
    CVE-2026-42593 (CVSS 5.3) — Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, pdfengines/merge, pdfengines/split…
    CVE-2026-42592 (CVSS 5.3) — Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, FilterOutboundURL resolves the hos…
    CVE-2026-42591 (CVSS 8.2) — Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, the LibreOffice conversion endpoin…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High