{"id":"DEBIAN-CVE-2026-73490","details":"Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Prior to 2.25.2, Loofah's HTML5 sanitizer applies its local-reference restriction only to the xlink:href attribute on SVG use and feImage elements, while browsers also accept the plain href attribute. A crafted sanitized SVG can therefore reference an arbitrary same-origin external document; use may render external SVG content containing scripts or other dangerous content, and feImage may load external images for tracking. Applications that sanitize user-supplied SVG with Loofah's default allowlist are affected. This issue is fixed in version 2.25.2.","modified":"2026-09-10T08:47:21.209794348Z","published":"2026-08-12T21:17:42.127Z","upstream":["CVE-2026-73490"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-73490"}],"affected":[{"package":{"name":"ruby-loofah","ecosystem":"Debian:12","purl":"pkg:deb/debian/ruby-loofah?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.19.1-1","2.20.0-1","2.21.3-1","2.21.4-1","2.22.0-1","2.24.0-1","2.24.1-1","2.25.0-1","2.25.1-1","2.25.1-2","2.25.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73490.json"}},{"package":{"name":"ruby-loofah","ecosystem":"Debian:13","purl":"pkg:deb/debian/ruby-loofah?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.24.0-1","2.24.1-1","2.25.0-1","2.25.1-1","2.25.1-2","2.25.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73490.json"}},{"package":{"name":"ruby-loofah","ecosystem":"Debian:14","purl":"pkg:deb/debian/ruby-loofah?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.25.2-1"}]}],"versions":["2.24.0-1","2.24.1-1","2.25.0-1","2.25.1-1","2.25.1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73490.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}