CVE-2026-96812

Name	CVE-2026-96812
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
golang-gvisor-gvisor (PTS)	bookworm	0.0~20221219.0-2	vulnerable
	trixie	0.0~20240729.0-4	vulnerable
	forky, sid	0.0~20240729.0-7	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
golang-gvisor-gvisor	source	(unstable)	(unfixed)

Fixed by: https://github.com/google/gvisor/commit/573a9e73cf844f9196cbdf776d6a98836b5c0f5c (release-20260824.0)