Server-Side Request Forgery (SSRF) Affecting weasyprint package, versions *
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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Test your applications- Snyk IDSNYK-ECHOLATEST-WEASYPRINT-19865249
- published16 Sept 2026
- disclosed14 Sept 2026
Introduced: 14 Sep 2026
NewCVE-2026-55073 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest weasyprint.
NVD Description
Note: Versions mentioned in the description apply only to the upstream weasyprint package and not the weasyprint package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
WeasyPrint helps web developers to create PDF documents. Prior to 70.0, server-side applications that configure a restrictive url_fetcher and pass attacker-influenced values to HTML.write_pdf() can have the restriction bypassed through the xmp_metadata or stylesheets options. In weasyprint/pdf/init.py, xmp_metadata calls select_source() without the document url_fetcher, allowing an accessible local file to be read and embedded verbatim in the output PDF. In weasyprint/document.py, stylesheets constructs CSS() without the document url_fetcher, allowing local or internal resource loading and propagating the permissive fetcher through nested CSS imports and url() references. The stylesheets channel applies fetched resources but does not by itself disclose stylesheet comments verbatim. This issue is fixed in version 70.0.