| Name | CVE-2026-49458 |
| Description | DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitize(node, { IN_PLACE: true }) accepted same-origin foreign-realm DOM nodes while follow-on checks used parent-realm constructors, causing instanceof checks for forms, named node maps, document fragments, and elements to fail and skip clobber, template-content, and shadow-DOM sanitization branches so executable markup could survive. This issue is fixed in version 3.4.6. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| node-dompurify (PTS) | bookworm | 2.4.1+dfsg+~2.4.0-2+deb12u1 | vulnerable |
| bookworm (security) | 2.4.1+dfsg+~2.4.0-2 | vulnerable | |
| trixie | 3.1.7+dfsg+~3.0.5-2 | vulnerable | |
| forky, sid | 3.4.5+dfsg-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| node-dompurify | source | (unstable) | (unfixed) |
https://github.com/cure53/DOMPurify/security/advisories/GHSA-hpcv-96wg-7vj8
Fixed by: https://github.com/cure53/DOMPurify/commit/bb7739e5bccec7e1ab3dae3f3e42d02db3acaaae (3.4.6)