Path traversal in Kata Containers - CVE-2026-47243
Published: May 22, 2026
Vulnerability identifier: #VU132140
CSH Severity: Low
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-47243
CWE-ID: CWE-22
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local privileged user to execute arbitrary code on the host system.
The vulnerability exists due to path traversal in the runtime-rs standalone virtio-fs path and host virtiofsd when processing raw FUSE_SYMLINK requests from a guest VM. A local privileged user can send a specially crafted FUSE request with an absolute host path to execute arbitrary code on the host system.
Exploitation requires root-equivalent code execution inside the Kata guest VM and affects deployments using standalone virtio-fs with host virtiofsd running as root.
Affected software
Kata Containers
openEuler
kata-containers
openEuler
kata-containers
How to mitigate CVE-2026-47243
Install security update from vendor's website.
Kata Containers - update to 3.31.0
kata-containers - update to 3.2.0-22
kata-containers - update to 3.2.0-22