Summary
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.
Impact
CVE-2026-7374 has a CVSS score of 9.9 (Critical). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (1.8.3, 1.7.4, 1.6.6); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
kubevirt.io/kubevirt to 1.8.3 or later; kubevirt.io/kubevirt to 1.7.4 or later; kubevirt.io/kubevirt to 1.6.6 or later
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2026-7374? CVE-2026-7374 is a critical-severity security vulnerability in kubevirt.io/kubevirt (go), affecting versions >= 1.8.0-alpha.0, < 1.8.3. It is fixed in 1.8.3, 1.7.4, 1.6.6.
- How severe is CVE-2026-7374? CVE-2026-7374 has a CVSS score of 9.9 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of kubevirt.io/kubevirt are affected by CVE-2026-7374? kubevirt.io/kubevirt (go) versions >= 1.8.0-alpha.0, < 1.8.3 is affected.
- Is there a fix for CVE-2026-7374? Yes. CVE-2026-7374 is fixed in 1.8.3, 1.7.4, 1.6.6. Upgrade to this version or later.
- Is CVE-2026-7374 exploitable, and should I be worried? Whether CVE-2026-7374 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2026-7374 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2026-7374?
- Upgrade
kubevirt.io/kubevirtto 1.8.3 or later - Upgrade
kubevirt.io/kubevirtto 1.7.4 or later - Upgrade
kubevirt.io/kubevirtto 1.6.6 or later
- Upgrade