lxml-html-clean: lxml_html_clean is a project for HTML cleaning functionalities copied from `lxml.html.clean`
CVE-2026-28348 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-28348, released March 5, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| lxml · Debian 12.15 (bookworm) | 4.9.2-1+deb12u1 | DEBIAN-CVE-2026-28348 | Mar 5, 2026 |
| lxml · Debian 13.5 (trixie) | 5.2.0-1 | DEBIAN-CVE-2026-28348 | Mar 5, 2026 |
| lxml · Debian 14 | 5.2.0-1 | DEBIAN-CVE-2026-28348 | Mar 5, 2026 |
| lxml-html-clean · Debian 13.5 (trixie) | 0.4.4-1~deb13u1 | DEBIAN-CVE-2026-28348 | Mar 5, 2026 |
| lxml-html-clean · Debian 14 | 0.4.4-1 | DEBIAN-CVE-2026-28348 | Mar 5, 2026 |
| python-lxml_html_clean · opensuse-leap 16.0 | 0.4.2-bp160.2.1 | OPENSUSE-SU-2026:20345-1 | Mar 11, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.