{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-13622", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-06-29T09:41:40.974Z", "datePublished": "2026-08-12T20:46:15.766Z", "dateUpdated": "2026-08-23T13:23:58.870Z" }, "containers": { "cna": { "title": "Kubevirt: virt-handler-rhel9: kubevirt: virt-handler migration proxy follows symlinks allowing container escape to host", "metrics": [ { "other": { "content": { "value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "A symlink following vulnerability was found in KubeVirt's virt-handler migration proxy. During live migration, virt-handler dials Unix sockets inside the target virt-launcher pod via /proc//root/ paths using net.Dial() without symlink protection. These socket paths reside in qemu-owned directories writable by the virt-launcher user. An attacker with namespace edit and pods/exec permissions can replace a migration proxy socket with a symlink to the host CRI-O socket. Because virt-handler runs as root in the host mount namespace, absolute symlink targets resolve against the host filesystem, and the bidirectional io.Copy proxy relays attacker-controlled bytes to the container runtime, enabling full node compromise." } ], "affected": [ { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.12", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler", "defaultStatus": "affected", "versions": [ { "version": "1785837722", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.12::el8" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.13", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1786346596", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.13::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.14", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1786309624", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.14::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.15", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1786347656", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.15::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.16", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1786030071", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.16::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.17", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1786348529", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.17::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.18", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1786130068", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.18::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.19", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1786334215", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.19::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.20", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1785831334", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.20::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.21", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1785829701", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.21::el9" ] }, { "vendor": "Red Hat", "product": "Red Hat Container Native Virtualization 4.22", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "container-native-virtualization/virt-handler-rhel9", "defaultStatus": "affected", "versions": [ { "version": "1785140336", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:container_native_virtualization:4.22::el9" ] } ], "references": [ { "url": "https://access.redhat.com/errata/RHEA-2026:53670", "name": "RHEA-2026:53670", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:51031", "name": "RHSA-2026:51031", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53655", "name": "RHSA-2026:53655", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53671", "name": "RHSA-2026:53671", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53684", "name": "RHSA-2026:53684", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53721", "name": "RHSA-2026:53721", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53728", "name": "RHSA-2026:53728", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53763", "name": "RHSA-2026:53763", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53797", "name": "RHSA-2026:53797", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53826", "name": "RHSA-2026:53826", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/errata/RHSA-2026:53838", "name": "RHSA-2026:53838", "tags": [ "vendor-advisory", "x_refsource_REDHAT" ] }, { "url": "https://access.redhat.com/security/cve/CVE-2026-13622", "tags": [ "vdb-entry", "x_refsource_REDHAT" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2494142", "name": "RHBZ#2494142", "tags": [ "issue-tracking", "x_refsource_REDHAT" ] } ], "datePublic": "2026-08-12T00:00:00.000Z", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-22", "description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "lang": "en", "type": "CWE" } ] } ], "x_redhatCweChain": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "workarounds": [ { "lang": "en", "value": "Restrict pods/exec permissions in namespaces that run virtual machines. The pods/exec RBAC permission is required for the attack — removing it from VM operator roles prevents exploitation. \n\nAdditionally, enable Kubernetes audit logging and monitor for kubectl exec commands targeting virt-launcher pods, especially during live migration events." } ], "timeline": [ { "lang": "en", "time": "2026-06-29T10:07:50.206Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-08-12T00:00:00.000Z", "value": "Made public." } ], "credits": [ { "lang": "en", "value": "This issue was discovered by Huzaifa Sidhpurwala (Red Hat)." } ], "providerMetadata": { "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-08-23T13:23:58.870Z" }, "x_generator": { "engine": "cvelib 1.8.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-08-13T19:21:32.127174Z", "id": "CVE-2026-13622", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-13T19:26:40.533Z" } } ] } }