Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2026-7374

Improper Link Resolution Before File Access ('Link Following')

Published: May 26, 2026 | Modified: Jun 30, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
9.9 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Ubuntu
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-7374
CWEhttps://cwe.mitre.org/data/definitions/59.html

A flaw was found in KubeVirts 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 hosts container runtime (CRI-O) socket, an attacker can hijack virt-handlers 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.

Weakness

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.

Affected Software

NameVendorStart VersionEnd Version
Red Hat Container Native Virtualization 4.12RedHatcontainer-native-virtualization/virt-handler:1779375376*
Red Hat Container Native Virtualization 4.13RedHatcontainer-native-virtualization/virt-handler-rhel9:1778999881*
Red Hat Container Native Virtualization 4.14RedHatcontainer-native-virtualization/virt-handler-rhel9:1779321599*
Red Hat Container Native Virtualization 4.15RedHatcontainer-native-virtualization/virt-handler-rhel9:1778859977*
Red Hat Container Native Virtualization 4.16RedHatcontainer-native-virtualization/virt-handler-rhel9:1778861274*
Red Hat Container Native Virtualization 4.17RedHatcontainer-native-virtualization/virt-handler-rhel9:1779174925*
Red Hat Container Native Virtualization 4.18RedHatcontainer-native-virtualization/virt-handler-rhel9:1778887155*
Red Hat Container Native Virtualization 4.19RedHatcontainer-native-virtualization/virt-handler-rhel9:1779289071*
Red Hat Container Native Virtualization 4.20RedHatcontainer-native-virtualization/virt-handler-rhel9:1779288737*
Red Hat Container Native Virtualization 4.21RedHatcontainer-native-virtualization/virt-handler-rhel9:1779420069*

Potential Mitigations

  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

References

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