Symlink Attack Affecting github.com/kubevirt/kubevirt/cmd/virt-handler package, versions <1.8.3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMKUBEVIRTKUBEVIRTCMDVIRTHANDLER-17132183
- published2 Jun 2026
- disclosed26 May 2026
- creditSarah Bennert, Stoyan Nikolov
Introduced: 26 May 2026
CVE-2026-7374 Â (opens in a new tab)How to fix?
Upgrade github.com/kubevirt/kubevirt/cmd/virt-handler to version 1.8.3 or higher.
Overview
Affected versions of this package are vulnerable to Symlink Attack via improper validation of symbolic links in the virt-handler process. An attacker can gain unauthorized access to privileged Unix sockets on the host by replacing a virtual machine console socket with a symlink to a sensitive host socket. This can result in full control over the node and potentially the entire cluster. This is only exploitable if an authenticated user has edit permissions in a namespace and can exec into virt-launcher pods.
Workaround
This vulnerability can be mitigated by updating cluster RBAC to not allow exec into virt-launcher pods.