{"id":"CVE-2026-13622","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-13622","generatedAt":"2026-10-28T00:20:25.956Z","title":"A symlink following vulnerability was found in KubeVirt's virt-handler migration proxy.","description":"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.","published":"2026-08-12T21:17:36.000Z","lastModified":"2026-10-23T19:10:00.000Z","status":"Awaiting Analysis","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-22"],"affected":[],"epss":{"score":0.00201,"percentile":0.0995,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHEA-2026:53670","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:51031","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53655","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53671","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53684","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53721","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53728","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53763","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53797","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53826","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53838","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-13622","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2494142","source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-13622","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}