CVE-2026-7374
CRITICAL
9.9
CVSS 3.1
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.
Metadata
Severity & Metrics
9.9
CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC — CISA Coordinator
Affected products (10)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Red Hat | Red Hat Container Native Virtualization 4.12 | — | 1779375376 < * |
| Red Hat | Red Hat Container Native Virtualization 4.13 | — | 1778999881 < * |
| Red Hat | Red Hat Container Native Virtualization 4.14 | — | 1779321599 < * |
| Red Hat | Red Hat Container Native Virtualization 4.15 | — | 1778859977 < * |
| Red Hat | Red Hat Container Native Virtualization 4.16 | — | 1778861274 < * |
| Red Hat | Red Hat Container Native Virtualization 4.17 | — | 1779174925 < * |
| Red Hat | Red Hat Container Native Virtualization 4.18 | — | 1778887155 < * |
| Red Hat | Red Hat Container Native Virtualization 4.19 | — | 1779289071 < * |
| Red Hat | Red Hat Container Native Virtualization 4.20 | — | 1779288737 < * |
| Red Hat | Red Hat Container Native Virtualization 4.21 | — | 1779420069 < * |
Weakness (CWE)
CVSS scores (2)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 9.9 | CRITICAL | 3.1 | cna | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| 9.9 | CRITICAL | 3.1 | adp | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
References (12)
- RHSA-2026:20720 https://access.redhat.com/errata/RHSA-2026:20720
- RHSA-2026:20736 https://access.redhat.com/errata/RHSA-2026:20736
- RHSA-2026:20763 https://access.redhat.com/errata/RHSA-2026:20763
- RHSA-2026:20767 https://access.redhat.com/errata/RHSA-2026:20767
- RHSA-2026:20782 https://access.redhat.com/errata/RHSA-2026:20782
- RHSA-2026:20825 https://access.redhat.com/errata/RHSA-2026:20825
- RHSA-2026:20866 https://access.redhat.com/errata/RHSA-2026:20866
- RHSA-2026:20886 https://access.redhat.com/errata/RHSA-2026:20886
- RHSA-2026:20890 https://access.redhat.com/errata/RHSA-2026:20890
- RHSA-2026:20975 https://access.redhat.com/errata/RHSA-2026:20975
- https://access.redhat.com/security/cve/CVE-2026-7374
- RHBZ#2463728 https://bugzilla.redhat.com/show_bug.cgi?id=2463728