{"id":"DEBIAN-CVE-2026-63622","details":"A flaw was found in libvirt. A local attacker, specifically a process running as the confined `swtpm` user, could exploit a symlink-following vulnerability in the `virFileChownFiles()` function. By planting a symbolic link within the `swtpm` state directory, the attacker could trick the root-level libvirt daemon into changing the ownership of an arbitrary file to the `swtpm` user. This allows for privilege escalation from the `swtpm` sandbox to root-level file ownership control.","modified":"2026-10-01T03:02:42.332591852Z","published":"2026-08-10T21:17:23.550Z","upstream":["CVE-2026-63622"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-63622"}],"affected":[{"package":{"name":"libvirt","ecosystem":"Debian:12","purl":"pkg:deb/debian/libvirt?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["10.0.0-1","10.0.0-2","10.0.0-3","10.1.0-1","10.10.0-1","10.10.0-2","10.10.0-3","10.10.0-4","10.2.0-1","10.3.0-1","10.3.0-2","10.3.0-3","10.4.0-1","10.5.0-1","10.6.0-1","10.6.0-2","10.6.0-3","10.7.0-1","10.7.0-2","10.7.0-3","10.8.0-1","10.9.0-1","10.9.0-2","11.0.0-1","11.0.0-2","11.1.0-1","11.1.0-2","11.10.0-1","11.10.0-2","11.2.0-1","11.2.0-2","11.2.0-3","11.3.0-1","11.3.0-2","11.3.0-2~bpo12+1","11.3.0-3","11.4.0-1","11.5.0-1","11.6.0-1","11.7.0-1","11.8.0-1","11.8.0-2","11.9.0-1","11.9.0-2","12.0.0-1","12.1.0-1","12.2.0-1","12.3.0-1","12.4.0-1","12.5.0-1","12.6.0-1","12.7.0-1","9.0.0-4","9.0.0-4+deb12u1","9.0.0-4+deb12u2","9.1.0-1","9.10.0-1","9.2.0-1","9.2.0-2","9.3.0-1","9.3.0-2","9.4.0-1","9.5.0-1","9.5.0-2","9.6.0-1","9.6.0-2","9.6.0-3","9.7.0-1","9.8.0-1","9.8.0-2","9.9.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63622.json"}},{"package":{"name":"libvirt","ecosystem":"Debian:13","purl":"pkg:deb/debian/libvirt?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.3.0-3+deb13u3"}]}],"versions":["11.3.0-3","11.3.0-3+deb13u1","11.3.0-3+deb13u2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63622.json"}},{"package":{"name":"libvirt","ecosystem":"Debian:14","purl":"pkg:deb/debian/libvirt?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"12.6.0-1"}]}],"versions":["11.10.0-1","11.10.0-2","11.3.0-3","11.4.0-1","11.5.0-1","11.6.0-1","11.7.0-1","11.8.0-1","11.8.0-2","11.9.0-1","11.9.0-2","12.0.0-1","12.1.0-1","12.2.0-1","12.3.0-1","12.4.0-1","12.5.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63622.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}