{"id":"DEBIAN-CVE-2026-96812","details":"Improper Exposure of Resource to Wrong Sphere in the host file helper (gofer) in Google gVisor prior to commit 573a9e73cf844f on Linux platforms with CUSE enabled allows a local attacker with container image deployment privileges to achieve root code execution on the host system. By including a /dev/cuse character device node in a container image, opening the device passes through to the host, allowing the sandboxed attacker to register a host device and exploit CUSE unrestricted ioctl handling to overwrite root udev helper memory.","modified":"2026-10-09T21:00:16.477022896Z","published":"2026-09-25T15:17:57.097Z","upstream":["CVE-2026-96812"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-96812"}],"affected":[{"package":{"name":"golang-gvisor-gvisor","ecosystem":"Debian:12","purl":"pkg:deb/debian/golang-gvisor-gvisor?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~20221219.0-2","0.0~20230807.0-1","0.0~20230807.0-2","0.0~20230807.0-3","0.0~20230807.0-4","0.0~20230807.0-4~bpo12+1","0.0~20230807.0-5","0.0~20240729.0-1","0.0~20240729.0-2","0.0~20240729.0-3","0.0~20240729.0-4","0.0~20240729.0-4~bpo12+1","0.0~20240729.0-4~bpo12+2","0.0~20240729.0-5","0.0~20240729.0-6","0.0~20240729.0-7"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-96812.json"}},{"package":{"name":"golang-gvisor-gvisor","ecosystem":"Debian:13","purl":"pkg:deb/debian/golang-gvisor-gvisor?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~20240729.0-4","0.0~20240729.0-5","0.0~20240729.0-6","0.0~20240729.0-7"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-96812.json"}},{"package":{"name":"golang-gvisor-gvisor","ecosystem":"Debian:14","purl":"pkg:deb/debian/golang-gvisor-gvisor?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.0~20240729.0-4","0.0~20240729.0-5","0.0~20240729.0-6","0.0~20240729.0-7"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-96812.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}