CVE-2025-55150

High

Description

Stirling-PDF is a locally hosted web application that performs various operations on PDF files. Prior to version 1.1.0, when using the /api/v1/convert/html/pdf endpoint to convert HTML to PDF, the backend calls a third-party tool to process it and includes a sanitizer for security sanitization which can be bypassed and result in SSRF. This issue has been patched in version 1.1.0.

SeverityHigh
CVSS8.6
Exploit probability—
ProductStirlingpdf Stirling Pdf
PublishedAug 11, 2025
First seenAug 11, 2025

How to fix

Update
  • stirlingpdf stirling_pdf1.1.0 or later

Affected products

ProductAffected versionsFixed in
stirlingpdf stirling_pdfv < 1.1.01.1.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

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