CVE-2026-7374Kubevirt: kubevirt virt-handler: privilege escalation and node compromise via symlink following vulnerability
Updated under an hour ago ()
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It affects Red Hat Container Native Virtualization 4.12. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-59
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Container Native Virtualization 4.12 redhat:container_native_virtualization | from 1779375376 not affected | CNA record |
Red Hat Red Hat Container Native Virtualization 4.12 redhat:container_native_virtualization | from 1779375376 not affected | CISA ADP |
References
- https://access.redhat.com/errata/RHSA-2026:20720vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20736vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20763vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20767vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20782vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20825vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20866vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20886vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20890vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:20975vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-7374vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2463728issue-tracking, x-refsource-redhat
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7374.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.