{"id":"DEBIAN-CVE-2026-74859","details":"The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside ~/.themes by using ../ path traversal, absolute paths, or symlink entries.","modified":"2026-09-11T06:00:09.327421016Z","published":"2026-09-08T09:18:20.960Z","upstream":["CVE-2026-74859"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-74859"}],"affected":[{"package":{"name":"gnome-tweaks","ecosystem":"Debian:12","purl":"pkg:deb/debian/gnome-tweaks?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["42~beta-4","45.1-1","46.0-1","46.0-2","46.1-1","46~beta-1","46~beta-2","49.0-1","49~rc-1","49~rc-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-74859.json"}},{"package":{"name":"gnome-tweaks","ecosystem":"Debian:13","purl":"pkg:deb/debian/gnome-tweaks?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["46.1-1","49.0-1","49~rc-1","49~rc-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-74859.json"}},{"package":{"name":"gnome-tweaks","ecosystem":"Debian:14","purl":"pkg:deb/debian/gnome-tweaks?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["46.1-1","49.0-1","49~rc-1","49~rc-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-74859.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H"}]}