{"id":"UBUNTU-CVE-2026-49459","details":"DOMPurify is a DOM-only cross-site scripting sanitizer for HTML, MathML, and SVG. Prior to 3.4.6, DOMPurify.sanitize(root, { IN_PLACE: true }) could preserve event-handler attributes on an attacker-controlled \u003cform\u003e root when a descendant name clobbered properties checked by _isClobbered, because _forceRemove no-opped on the parent-less root and _sanitizeAttributes returned early. This issue is fixed in version 3.4.6.","modified":"2026-07-15T19:47:26.813477717Z","published":"2026-07-14T21:17:00Z","upstream":["CVE-2026-49459"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-49459"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-49459"},{"type":"REPORT","url":"https://github.com/cure53/DOMPurify/commit/bb7739e5bccec7e1ab3dae3f3e42d02db3acaaae"},{"type":"REPORT","url":"https://github.com/cure53/DOMPurify/releases/tag/3.4.6"},{"type":"REPORT","url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-r47g-fvhr-h676"}],"affected":[{"package":{"name":"dompurify.js","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dompurify.js?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7.3~dfsg1-1","0.7.3~dfsg1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libjs-dompurify","binary_version":"0.7.3~dfsg1-2"},{"binary_name":"node-dompurify","binary_version":"0.7.3~dfsg1-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49459.json"}},{"package":{"name":"dompurify.js","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/dompurify.js?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.0~dfsg1-1","0.9.0~dfsg1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libjs-dompurify","binary_version":"0.9.0~dfsg1-2"},{"binary_version":"0.9.0~dfsg1-2","binary_name":"node-dompurify"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49459.json"}},{"package":{"name":"node-dompurify","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-dompurify?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.0+dfsg-2","2.3.3+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-dompurify","binary_version":"2.3.3+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49459.json"}},{"package":{"name":"node-dompurify","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-dompurify?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.4.1+dfsg+~2.4.0-1","3.0.9+dfsg+~3.0.5-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.9+dfsg+~3.0.5-1","binary_name":"node-dompurify"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49459.json"}},{"package":{"name":"node-dompurify","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-dompurify?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.7+dfsg+~3.0.5-2","3.3.3+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.3.3+dfsg-1","binary_name":"node-dompurify"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49459.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}