CVE-2026-42595

8.6 HIGH

Gotenberg is a Docker-powered stateless API for PDF files

Published: 2026-05-14 · Last updated: 2026-05-18

Severity and scoring

CVSS: 8.6 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE: CWE-918

Affected products

Vendor	Product
thecodingmachine	gotenberg

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-42595
[Vendor advisory]https://github.com/gotenberg/gotenberg/security/advisories/GHSA-chwh-f6gm-r836
[Vendor advisory]https://github.com/gotenberg/gotenberg/security/advisories/GHSA-chwh-f6gm-r836

Related CVEs

Same vendor

CVE-2026-42597 — Gotenberg is a Docker-powered stateless API for PDF files (5.9 MEDIUM)
CVE-2026-42596 — Gotenberg is a Docker-powered stateless API for PDF files (9.4 CRITICAL)
CVE-2026-42594 — Gotenberg is a Docker-powered stateless API for PDF files (7.5 HIGH)
CVE-2026-42593 — Gotenberg is a Docker-powered stateless API for PDF files (5.3 MEDIUM)
CVE-2026-42592 — Gotenberg is a Docker-powered stateless API for PDF files (5.3 MEDIUM)

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