{"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/<pid>/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"}}]}}