Server-side Request Forgery (SSRF) Affecting weasyprint package, versions [,70.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-WEASYPRINT-19659995
- published10 Sept 2026
- disclosed9 Sept 2026
- creditko41a
Introduced: 9 Sep 2026
NewCVE-2026-55073 (opens in a new tab)How to fix?
Upgrade weasyprint to version 70.0 or higher.
Overview
weasyprint is a The Awesome Document Factory
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the write_pdf() stylesheet and XMP metadata loading paths in weasyprint/document.py and weasyprint/pdf/__init__.py. An attacker can make the rendering process fetch local or internal resources by supplying attacker-controlled URLs or paths through stylesheets= or xmp_metadata=. This bypasses the document’s configured url_fetcher, so server-side PDF generation can read local files or reach internal endpoints, leading to data exposure and unintended resource access in applications that render untrusted input.