CVE-2026-13218
Medium · 4.2CVSS
4.2
EPSS
0.1%
Published
Jun 26, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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