CVE-2026-7374: Kubevirt.io/kubevirt KubeVirt Has A Link Following Vulnerability
CRITICALCVE-2026-7374 is a CRITICAL (CVSS 9.9) kubevirt has a link following vulnerability (CWE-59: Improper Link Resolution Before File Access ('Link Following')) affecting Kubevirt.io/kubevirt libraries in the Go ecosystem. The issue involves kubevirt has a link following vulnerability. Remediation is available by upgrading affected packages to version 1.8.3, 1.7.4, 1.6.6.
CVE-2026-7374 at a Glance
Security Impact
CVSS: 9.9
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).
How to Fix CVE-2026-7374
To remediate this vulnerability, upgrade all affected Kubevirt.io/kubevirt dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade kubevirt.io/kubevirt to 1.8.3Upgrade kubevirt.io/kubevirt to 1.7.4Upgrade kubevirt.io/kubevirt to 1.6.6Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for kubevirt.io/kubevirtHow to Check if You Are Affected
To determine whether your application is affected by CVE-2026-7374, inspect your project dependencies for Kubevirt.io/kubevirt:
inspect dependencies for kubevirt.io/kubevirtAnalyze the terminal output to locate any version of Kubevirt.io/kubevirt in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.8.3), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-59: Improper Link Resolution Before File Access ('Link Following'), where the product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. In Kubevirt.io/kubevirt, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-7374 Affected Kubevirt.io/kubevirt Versions
3 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
kubevirt.io/kubevirt
|
Go |
≥ 1.8.0-alpha.0
< 1.8.3
|
1.8.3
|
|
kubevirt.io/kubevirt
|
Go |
≥ 1.7.0-alpha.0
< 1.7.4
|
1.7.4
|
|
kubevirt.io/kubevirt
|
Go |
< 1.6.6
|
1.6.6
|
References
Frequently Asked Questions
What is CVE-2026-7374?
Which Kubevirt.io/kubevirt versions are affected?
What version fixes CVE-2026-7374?
Is kubevirt.io/kubevirt affected?
What is the CVSS score of CVE-2026-7374?
What CWE is associated with CVE-2026-7374?
How can I check Go dependencies for CVE-2026-7374?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-7jcp-v9w4-wjmg",
"modified" : "2026-06-30T18:04:04Z",
"published" : "2026-05-26T15:32:10Z",
"aliases" : [ "CVE-2026-7374" ],
"summary" : "KubeVirt has a Link Following vulnerability",
"details" : "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.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "kubevirt.io/kubevirt"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.8.0-alpha.0"
}, {
"fixed" : "1.8.3"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "kubevirt.io/kubevirt"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.7.0-alpha.0"
}, {
"fixed" : "1.7.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Go",
"name" : "kubevirt.io/kubevirt"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.6.6"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-7374"
}, {
"type" : "WEB",
"url" : "https://github.com/kubevirt/kubevirt/pull/17916"
}, {
"type" : "WEB",
"url" : "https://github.com/kubevirt/kubevirt/commit/011eef8129e2c21e0ea496f283ee1676009bc757"
}, {
"type" : "WEB",
"url" : "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7374.json"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/kubevirt/kubevirt"
}, {
"type" : "WEB",
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2463728"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/security/cve/CVE-2026-7374"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20975"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20890"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20886"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20866"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20825"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20782"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20767"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20763"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20736"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:20720"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-59" ],
"severity" : "CRITICAL",
"github_reviewed" : true,
"github_reviewed_at" : "2026-06-30T18:04:03Z",
"nvd_published_at" : "2026-05-26T14:16:40Z"
}
}