All intelligence
// vulnerability record
cached · NVD via COSMOS syncCVE-2026-13218
MEDIUMpublished 2026-06-26 00:16 UTC · 3 days ago · modified 2026-06-26 16:19 UTC
4.2
CVSS / 10
// 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.
// cvss 3.1 vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L
// weaknesses (CWE)
- CWE-61