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.

The remote Fedora 44 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-309c4b78a1 advisory.

    Update to latest upstream version of WeasyPrint and python-cssselect2.  This update fixes  CVE-2026-55073     (Server-Side Request Forgery)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-05e36e4865 advisory.

    Update to latest upstream version of WeasyPrint and python-cssselect2.  This update fixes  CVE-2026-55073     (Server-Side Request Forgery)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 45 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-2853ef7804 advisory.

    Update to latest upstream version of WeasyPrint and python-cssselect2.  This update fixes  CVE-2026-55073     (Server-Side Request Forgery)

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:21928-1 advisory.

    Changes in python-weasyprint:

    - CVE-2026-55073: Server-Side Request Forgery (SSRF) (bsc#1279942)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-55073)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-55073)

ID	Name	Product	Family	Type	Severity
362821	Fedora 44 : python-cssselect2 / weasyprint (2026-309c4b78a1)	Nessus	Fedora Local Security Checks	Local	medium
358432	Fedora 43 : python-cssselect2 / weasyprint (2026-05e36e4865)	Nessus	Fedora Local Security Checks	Local	medium
358429	Fedora 45 : python-cssselect2 / weasyprint (2026-2853ef7804)	Nessus	Fedora Local Security Checks	Local	medium
350162	openSUSE 16 Security Update : python-weasyprint (openSUSE-SU-2026:21928-1)	Nessus	SuSE Local Security Checks	Local	medium
345951	Linux Distros Unpatched Vulnerability : CVE-2026-55073	Nessus	Misc.	Local	medium
447848	SCA: security update for weasyprint (GHSA-jf6q-chmf-3h3v)	Tenable Cloud Security	SCA Checks	Local	medium
447848	SCA: security update for weasyprint (GHSA-jf6q-chmf-3h3v)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium

Detections

Analytics

CVE-2026-55073

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium

medium