lxml_html_clean is a project for HTML cleaning functionalities copied from `lxml.html.clean`. Prior to version 0.4.4, the _has_sneaky_javascript() method strips backslashes before checking for dangerous CSS keywords. This causes CSS Unicode escape sequences to bypass the @import and expression() filters, allowing external CSS loading or XSS in older browsers. This issue has been patched in version 0.4.4.

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20345-1 advisory.

    Changes in python-lxml_html_clean:

    - CVE-2026-28348: improper keywords checking can allow external CSS loading (bsc#1259378)
    - CVE-2026-28350: lack of base tag handling can allow the hijacking of the resolution of relative URLs     (bsc#1259379)

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

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

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-f46fc594f3 advisory.

    Security update for python-lxml-html-clean


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

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

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-154efc6066 advisory.

    Security update for python-lxml-html-clean


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

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

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-fdded962b2 advisory.

    Security update for python-lxml-html-clean


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

Note that Nessus has not tested for these issues 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.

  - lxml_html_clean is a project for HTML cleaning functionalities copied from `lxml.html.clean`. Prior to     version 0.4.4, the _has_sneaky_javascript() method strips backslashes before checking for dangerous CSS     keywords. This causes CSS Unicode escape sequences to bypass the @import and expression() filters,     allowing external CSS loading or XSS in older browsers. This issue has been patched in version 0.4.4.
    (CVE-2026-28348)

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:

  - lxml_html_clean is a project for HTML cleaning functionalities copied from `lxml.html.clean`. Prior to
    version 0.4.4, the _has_sneaky_javascript() method strips backslashes before checking for dangerous CSS
    keywords. This causes CSS Unicode escape sequences to bypass the @import and expression() filters,
    allowing external CSS loading or XSS in older browsers. This issue has been patched in version 0.4.4.
    (CVE-2026-28348)

ID	Name	Product	Family	Severity
302092	openSUSE 16 Security Update : python-lxml_html_clean (openSUSE-SU-2026:20345-1)	Nessus	SuSE Local Security Checks	medium
301918	Fedora 44 : python-lxml-html-clean (2026-f46fc594f3)	Nessus	Fedora Local Security Checks	medium
301914	Fedora 42 : python-lxml-html-clean (2026-154efc6066)	Nessus	Fedora Local Security Checks	medium
301913	Fedora 43 : python-lxml-html-clean (2026-fdded962b2)	Nessus	Fedora Local Security Checks	medium
301397	Linux Distros Unpatched Vulnerability : CVE-2026-28348	Nessus	Misc.	medium
438332	SCA: security update for lxml-html-clean (GHSA-hw26-mmpg-fqfg)	Tenable Cloud Security	SCA Checks	medium
438332	SCA: security update for lxml-html-clean (GHSA-hw26-mmpg-fqfg)	Tenable Self-Hosted Container Security	SCA Checks	medium

Detections

Analytics

CVE-2026-28348

medium

Tenable Plugins

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