{"id":"CVE-2026-7374","title":"A flaw was found in KubeVirt's virt-handler component","summary":"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 consol…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-59"],"vendor":"Red Hat","product":"kubevirt","affected":["kubevirt < 1.6.6","kubevirt >= 1.7.0 < 1.7.4","kubevirt >= 1.8.0 < 1.8.3","container-native-virtualization/virt-handler (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)","container-native-virtualization/virt-handler-rhel9 (all versions)"],"patched":["container_native_virtualization 4.12","container_native_virtualization 4.13","container_native_virtualization 4.14","container_native_virtualization 4.15","container_native_virtualization 4.16","container_native_virtualization 4.17","container_native_virtualization 4.18","container_native_virtualization 4.19","container_native_virtualization 4.20","container_native_virtualization 4.21"],"published":"2026-05-26","updated":"2026-09-10","sourceUpdated":"2026-09-10T13:20:31.720","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-7374","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:20720","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20736","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20763","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20767","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20782","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20825","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20866","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20886","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20890","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20975","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-7374","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2463728","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:20720","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20736","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20763","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20767","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20782","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20825","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20866","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20886","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20890","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:20975","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-7374","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2463728","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7374.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-7374"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7374"},{"url":"https://github.com/kubevirt/kubevirt/pull/17916"},{"url":"https://github.com/kubevirt/kubevirt/commit/011eef8129e2c21e0ea496f283ee1676009bc757"},{"url":"https://github.com/kubevirt/kubevirt"}],"tags":["nvd","cve.org","csaf","vex","red-hat","osv","go"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-05-26T00:00:00+00:00"},"epss":0.00742,"epssPercentile":0.52768,"ingestedAt":"2026-07-19T12:30:57.223Z","aliases":["GHSA-7jcp-v9w4-wjmg","GO-2026-5848"],"ecosystem":"go","slug":"CVE-2026-7374","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:20825** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.12 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20825)\n- **RHSA-2026:20886** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.13 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20886)\n- **RHSA-2026:20890** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.14 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20890)\n- **RHSA-2026:20866** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.15 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20866)\n- **RHSA-2026:20975** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.16 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20975)\n- **RHSA-2026:20763** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.17 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20763)\n- **RHSA-2026:20736** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.18 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20736)\n- **RHSA-2026:20767** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.19 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20767)\n- **RHSA-2026:20782** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.20 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20782)\n- **RHSA-2026:20720** · Red Hat · fixed in: Red Hat Container Native Virtualization 4.21 · released 2026-05-26 · [advisory](https://access.redhat.com/errata/RHSA-2026:20720)\n\n## Package advisory (CVE-2026-7374)\n\nAffected packages:\n\n- `kubevirt.io/kubevirt >= 1.8.0-alpha.0, < 1.8.3`\n- `kubevirt.io/kubevirt >= 1.7.0-alpha.0, < 1.7.4`\n- `kubevirt.io/kubevirt < 1.6.6`\n\nPatched in:\n\n- `kubevirt.io/kubevirt 1.8.3`\n- `kubevirt.io/kubevirt 1.7.4`\n- `kubevirt.io/kubevirt 1.6.6`\n\nSource: https://osv.dev/vulnerability/GHSA-7jcp-v9w4-wjmg","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}