{"id":"EUVD-2026-39594","revision":"8dbb317671ff44cea6c71d87be4b403b","records":[{"revision":"8dbb317671ff44cea6c71d87be4b403b","observedAt":"2026-11-06T19:05:43.562+00:00","statement":{"source":"euvd","id":"EUVD-2026-39594","aliases":["CVE-2026-13218","GHSA-q3jc-42cq-33fj"],"title":"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 con…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L","score":4.2,"severity":null}],"references":["https://access.redhat.com/security/cve/CVE-2026-13218","https://bugzilla.redhat.com/show_bug.cgi?id=2492654"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39594","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 25, 2026, 11:23:23 PM","dateUpdated":"Jun 26, 2026, 2:58:48 PM"},"relatedAdvisories":[{"id":"msrc_CVE-2026-13218","title":"Kubevirt: kubevirt: symlink following in writetocachedfile allows host file overwrite from virt-launcher","vulnerabilityIds":["CVE-2026-13218"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-39594","identifiers":["EUVD-2026-39594","CVE-2026-13218","GHSA-q3jc-42cq-33fj"]},"retained":false,"historicalAffected":[]}],"coverage":[]}