Vulnerability in Red Hat Container Native Virtualization 4.12
CVE-2026-7374
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (54.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.007 · change: -0.001
Affected products
- Red Hat Container Native Virtualization 4.12 — versions 1779375376
- Red Hat Container Native Virtualization 4.13 — versions 1778999881
- Red Hat Container Native Virtualization 4.14 — versions 1779321599
- Red Hat Container Native Virtualization 4.15 — versions 1778859977
- Red Hat Container Native Virtualization 4.16 — versions 1778861274
- Red Hat Container Native Virtualization 4.17 — versions 1779174925
- Red Hat Container Native Virtualization 4.18 — versions 1778887155
- Red Hat Container Native Virtualization 4.19 — versions 1779289071
- Red Hat Container Native Virtualization 4.2 — versions 1779288737
- Red Hat Container Native Virtualization 4.20 — versions 1779288737
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-7374 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:20720 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:20736 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:20763 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:20782 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:20825 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:20866 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:20886 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:20890 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-7374?
- CVE-2026-7374 is a critical-severity vulnerability in Red Hat Container Native Virtualization 4.12, classified under Improper Link Resolution Before File Access. CVSS score: 9.9/10. Published 2026-05-26.
- How severe is CVE-2026-7374?
- Critical severity. CVSS v3 base score is 9.9 out of 10.