{"id":"DEBIAN-CVE-2026-49978","details":"DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.7, DOMPurify IN_PLACE sanitization could skip shadow contents attached to an element inside \u003ctemplate\u003e.content, allowing attacker-controlled markup such as event handlers, JavaScript URLs, or scripts to survive and execute when an application cloned and inserted the sanitized template. This issue is fixed in version 3.4.7.","modified":"2026-08-27T23:06:27.251380408Z","published":"2026-07-14T21:17:02.560Z","upstream":["CVE-2026-49978"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-49978"}],"affected":[{"package":{"name":"node-dompurify","ecosystem":"Debian:12","purl":"pkg:deb/debian/node-dompurify?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.1+dfsg+~2.4.0-1","2.4.1+dfsg+~2.4.0-2","2.4.1+dfsg+~2.4.0-2+deb12u1","3.0.9+dfsg+~3.0.5-1","3.1.6+dfsg+~3.0.5-1","3.1.7+dfsg+~3.0.5-1","3.1.7+dfsg+~3.0.5-2","3.2.5+dfsg-1","3.3.2+dfsg-1","3.3.3+dfsg-1","3.3.3+dfsg-2","3.4.1+dfsg-1","3.4.12+dfsg-1","3.4.13+dfsg-1","3.4.13+dfsg-2","3.4.2+dfsg-1","3.4.5+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49978.json"}},{"package":{"name":"node-dompurify","ecosystem":"Debian:13","purl":"pkg:deb/debian/node-dompurify?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.7+dfsg+~3.0.5-2","3.2.5+dfsg-1","3.3.2+dfsg-1","3.3.3+dfsg-1","3.3.3+dfsg-2","3.4.1+dfsg-1","3.4.12+dfsg-1","3.4.13+dfsg-1","3.4.13+dfsg-2","3.4.2+dfsg-1","3.4.5+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49978.json"}},{"package":{"name":"node-dompurify","ecosystem":"Debian:14","purl":"pkg:deb/debian/node-dompurify?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.12+dfsg-1"}]}],"versions":["3.1.7+dfsg+~3.0.5-2","3.2.5+dfsg-1","3.3.2+dfsg-1","3.3.3+dfsg-1","3.3.3+dfsg-2","3.4.1+dfsg-1","3.4.2+dfsg-1","3.4.5+dfsg-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49978.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}