{"id":"UBUNTU-CVE-2026-109345","details":"DOMPurify before 3.4.16 contains a cross-site scripting vulnerability that allows attackers to bypass sanitization because IN_PLACE mode returns a force-removed style element whose text content still carries markup. Attackers can supply a style element containing a closing style tag and an img onerror payload, which executes script when the application serializes and re-parses the returned node.","modified":"2026-10-17T12:58:45.014380615Z","published":"2026-10-12T17:17:00Z","upstream":["CVE-2026-109345"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-109345"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-109345"},{"type":"REPORT","url":"https://github.com/cure53/DOMPurify/security/advisories/GHSA-6688-9rhm-gjv2"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/dompurify-before-3.4.16-xss-via-in-place-returned-rawtext-root"}],"affected":[{"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-2026-109345.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_name":"node-dompurify","binary_version":"3.0.9+dfsg+~3.0.5-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109345.json"}},{"package":{"name":"node-dompurify","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/node-dompurify?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.3+dfsg-1","3.4.2+dfsg-1","3.4.5+dfsg-1","3.4.12+dfsg-1","3.4.13+dfsg-1","3.4.13+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"node-dompurify","binary_version":"3.4.13+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109345.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-2026-109345.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"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"},{"type":"Ubuntu","score":"medium"}]}