This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-49458 →

DEBIAN-CVE-2026-49458

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 }) accepte...

Original description

The description as published by the source.

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: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 node-dompurify

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 node-dompurify

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 node-dompurify

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.12+dfsg-1"}]}]

References

advisory security-tracker.debian.org