{"id":"CVE-2026-96812","revision":"a3088a6ee71f49ca8d64addf13eec374","records":[{"revision":"a3088a6ee71f49ca8d64addf13eec374","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-96812","aliases":[],"title":"Host Root Sandbox Escape in gVisor via Character Device Passthrough and CUSE","description":"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.","state":0,"publishedAt":"2026-09-25T14:47:47.41+00:00","modifiedAt":"2026-09-25T16:07:52.56+00:00","affected":[{"ecosystem":"Vendor product","name":"gVisor","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Google\",\n                    \"product\": \"gVisor\",\n                    \"platforms\": [\n                        \"Linux\"\n                    ],\n                    \"repo\": \"https://github.com/google/gvisor\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"573a9e73cf844f\",\n                            \"versionType\": \"git\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":8.8,"severity":"HIGH"}],"references":["https://github.com/google/gvisor/commit/573a9e73cf844f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-96812","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-96812","identifiers":["CVE-2026-96812"]},"retained":false,"historicalAffected":[]}],"coverage":[]}