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.
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Affected Vendors & Products
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History
Thu, 14 May 2026 21:30:00 +0000
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Thu, 14 May 2026 17:45:00 +0000
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Gotenberg
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Gotenberg
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Thu, 14 May 2026 16:15:00 +0000
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| Description | 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. | |
| Title | Gotenberg: Arbitrary PDF read via stampExpression and watermarkExpression in merge, split, and convert routes | |
| Weaknesses | CWE-22 CWE-73 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-05-14T19:51:47.042Z
Reserved: 2026-04-29T00:31:15.724Z
Link: CVE-2026-42593
Updated: 2026-05-14T19:04:50.906Z
Status : Undergoing Analysis
Published: 2026-05-14T16:16:22.450
Modified: 2026-05-14T20:17:05.160
Link: CVE-2026-42593
No data.
OpenCVE Enrichment
Updated: 2026-05-14T17:30:15Z