GHSA-7jcp-v9w4-wjmg
KubeVirt has a Link Following vulnerability
At a glance
- Published
- Updated
- CVE
- CVE-2026-7374
- Aliases
- GO-2026-5848
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Description
A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host's container runtime (CRI-O) socket, an attacker can hijack virt-handler's privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster.
Affected packages
| Package | Versions |
|---|---|
| Go · kubevirt.io/kubevirt | introduced 1.8.0-alpha.0, fixed 1.8.3 |
| Go · kubevirt.io/kubevirt | introduced 1.7.0-alpha.0, fixed 1.7.4 |
| Go · kubevirt.io/kubevirt | introduced 0, fixed 1.6.6 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-7374 ADVISORY
- https://github.com/kubevirt/kubevirt/pull/17916 WEB
- https://github.com/kubevirt/kubevirt/commit/011eef8129e2c21e0ea496f283ee1676009bc757 WEB
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7374.json WEB
- https://github.com/kubevirt/kubevirt PACKAGE
- https://bugzilla.redhat.com/show_bug.cgi?id=2463728 WEB
- https://access.redhat.com/security/cve/CVE-2026-7374 WEB
- https://access.redhat.com/errata/RHSA-2026:20975 WEB
- https://access.redhat.com/errata/RHSA-2026:20890 WEB
- https://access.redhat.com/errata/RHSA-2026:20886 WEB
- https://access.redhat.com/errata/RHSA-2026:20866 WEB
- https://access.redhat.com/errata/RHSA-2026:20825 WEB
- https://access.redhat.com/errata/RHSA-2026:20782 WEB
- https://access.redhat.com/errata/RHSA-2026:20767 WEB
- https://access.redhat.com/errata/RHSA-2026:20763 WEB
- https://access.redhat.com/errata/RHSA-2026:20736 WEB
- https://access.redhat.com/errata/RHSA-2026:20720 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |