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.

CVSS v3 8.6 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/gotenberg/gotenberg/security/advisories/GHSA-chwh-f6gm-r836	Exploit Vendor Advisory
https://github.com/gotenberg/gotenberg/security/advisories/GHSA-chwh-f6gm-r836	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:thecodingmachine:gotenberg:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-14 16:16

Updated : 2026-06-17 10:48

NVD link : CVE-2026-42595

Mitre link : CVE-2026-42595

CVE.ORG link : CVE-2026-42595

JSON object : View

Products Affected

thecodingmachine

gotenberg

CWE

CWE-918

Server-Side Request Forgery (SSRF)

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