SB20260529204 - openEuler 24.03 LTS update for kata-containers



SB20260529204 - openEuler 24.03 LTS update for kata-containers

Published: May 29, 2026

Security Bulletin ID SB20260529204
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Path traversal (CVE-ID: CVE-2026-47243)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 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/E:U/U:Clear


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.


Remediation

Install update from vendor's website.