{"id":"DEBIAN-CVE-2026-13601","details":"A flaw was found in Yelp due to an overly permissive Content Security Policy (CSP) implementation provided by yelp-xsl. A malicious Flatpak application can open crafted help content through the OpenURI portal. By embedding an untrusted CSS stylesheet within a structured SVG document, attacker-controlled content can bypass Flatpak's intended sandbox isolation, allowing Yelp to evaluate local XML inclusions and disclose arbitrary user-readable host files through remote CSS resource requests. This may result in the unauthorized disclosure of sensitive information.","modified":"2026-10-01T03:02:17.601483493Z","published":"2026-06-29T10:16:30.180Z","upstream":["CVE-2026-13601"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-13601"}],"affected":[{"package":{"name":"yelp","ecosystem":"Debian:12","purl":"pkg:deb/debian/yelp?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"42.2-1+deb12u2"}]}],"versions":["42.2-1","42.2-1+deb12u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13601.json"}},{"package":{"name":"yelp","ecosystem":"Debian:13","purl":"pkg:deb/debian/yelp?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"42.2-4+deb13u1"}]}],"versions":["42.2-4"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13601.json"}},{"package":{"name":"yelp","ecosystem":"Debian:14","purl":"pkg:deb/debian/yelp?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"49.1-1"}]}],"versions":["42.2-4","42.3-1","42.3-2","42.3-3","49.0-1","49.0-2","49.0-3","49.0-4","49.0-5","49~rc-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-13601.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"}]}