CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.2. See the original NVD description below for full technical details.
CVE
CVE-2026-13218
Severity
MEDIUM
CVSS
4.2
EPSS
0.11%
Original NVD Description
A flaw was found in KubeVirt's virt-handler network cache handling. The WriteToCachedFile function writes data to a launcher-rooted path using os.WriteFile and os.Chown without symlink protection. A user with access to the virt-launcher container can plant a symlink at the cache file path, causing virt-handler to follow it and overwrite an arbitrary host file with JSON content and change its ownership.
Related CVEs
Other vulnerabilities affecting the same vendor(s)