Improper Neutralization of Argument Delimiters in a Command in Kata Containers - CVE-2026-44210
Published: May 22, 2026
Vulnerability identifier: #VU132138
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-44210
CWE-ID: CWE-88
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Kata Containers
Affected software:
Kata Containers
Kata Containers
Detailed vulnerability description
The vulnerability allows a remote user to read and write arbitrary files on the host.
The vulnerability exists due to improper neutralization of argument delimiters in a command in the virtiofsd argument handling for the io.katacontainers.config.hypervisor.virtio_fs_extra_args pod annotation when processing user-supplied pod annotations. A remote user can inject crafted virtiofsd and kernel parameters to read and write arbitrary files on the host.
Exploitation requires the ability to create pods on a Kubernetes cluster using Kata Containers with the default annotation configuration enabled.
How to mitigate CVE-2026-44210
Install security update from vendor's website.