`lxml_html_clean.Cleaner` does not strip `javascript:` URLs from namespaced URL attributes
High-risk advisory
CVE-2026-49825
Summary
`lxml_html_clean.Cleaner` does not strip `javascript:` URLs from namespaced URL attributes
Why it matters
GitHub has published a reviewed security advisory for lxml_html_clean. Prioritize it with other application dependency updates.
Operator check
Check whether lxml_html_clean is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.