CVE-2026-7374
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.74% probability · 53th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:20720
- https://access.redhat.com/errata/RHSA-2026:20736
- https://access.redhat.com/errata/RHSA-2026:20763
- https://access.redhat.com/errata/RHSA-2026:20767
- https://access.redhat.com/errata/RHSA-2026:20782
- https://access.redhat.com/errata/RHSA-2026:20825
- https://access.redhat.com/errata/RHSA-2026:20866
- https://access.redhat.com/errata/RHSA-2026:20886
- https://access.redhat.com/errata/RHSA-2026:20890
- https://access.redhat.com/errata/RHSA-2026:20975
- https://access.redhat.com/security/cve/CVE-2026-7374
- https://bugzilla.redhat.com/show_bug.cgi?id=2463728
- https://access.redhat.com/errata/RHSA-2026:20720
- https://access.redhat.com/errata/RHSA-2026:20736
- https://access.redhat.com/errata/RHSA-2026:20763
- https://access.redhat.com/errata/RHSA-2026:20767
- https://access.redhat.com/errata/RHSA-2026:20782
- https://access.redhat.com/errata/RHSA-2026:20825
- https://access.redhat.com/errata/RHSA-2026:20866
- https://access.redhat.com/errata/RHSA-2026:20886
- https://access.redhat.com/errata/RHSA-2026:20890
- https://access.redhat.com/errata/RHSA-2026:20975
- https://access.redhat.com/security/cve/CVE-2026-7374
- https://bugzilla.redhat.com/show_bug.cgi?id=2463728
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7374.json
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.