CVE-2026-42593

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.32.0, pdfengines/merge, pdfengines/split, libreoffice/convert, chromium/convert/url, chromium/convert/html, and chromium/convert/markdown accept stampSource=pdf + stampExpression=/path and watermarkSource=pdf + watermarkExpression=/path from anonymous callers. The dedicated stamp/watermark routes require an uploaded file when the source type is image or pdf; these six routes only overwrite the expression when a file is uploaded, leaving the user-controlled path intact when no file is attached. pdfcpu opens the path and composites its pages onto the output PDF, which returns to the caller. An attacker reads any PDF the Gotenberg process can access on the container filesystem. This vulnerability is fixed in 8.32.0.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/gotenberg/gotenberg/security/advisories/GHSA-3cv5-q585-h563	Exploit Mitigation Vendor Advisory
https://github.com/gotenberg/gotenberg/security/advisories/GHSA-3cv5-q585-h563	Exploit Mitigation 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-2026-42593

Mitre link : CVE-2026-42593

CVE.ORG link : CVE-2026-42593

JSON object : View

Products Affected

thecodingmachine

gotenberg

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-73

External Control of File Name or Path

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