--- cve: "CVE-2026-13201" severity: "HIGH" cvss: 7.3 epss: "15%" vendor: "Red Hat" kev: false exploited: false published: "2026-06-24 21:16:52" tags: [cve, security, high] source: tsecurity.de CVE-Dossier exported: "2026-09-11T12:19:01+02:00" --- # CVE-2026-13201 > 7.3 HIGH ## Beschreibung A flaw was found in KubeVirt's safepath package used by virt-handler. The OpenAtNoFollow function uses O_PATH|O_NOFOLLOW to obtain a file descriptor to a path leaf, but downstream operations resolve the path via /proc/self/fd/N using link-following syscalls. When the leaf is a symlink, the kernel dereferences it, defeating the intended no-follow protection. An attacker with access to a virt-launcher pod can exploit this to redirect virt-handler's IPC socket connections, including the notify socket used for VM domain lifecycle events. By hijacking this socket, the attacker can inject arbitrary domain events into virt-handler, causing it to take incorrect lifecycle actions, corrupt VM state in the Kubernetes API, or crash — resulting in sustained denial of VM management services for all virtual machines on the affected node. Additionally, the same symlink following flaw allows virt-handler to apply file ownership or permission changes to unintended host paths. ## CVSS-Vektor ``` CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Lokal | good | | AC Komplexität | Gering | bad | | PR Privilegien | Gering | warn | | UI Interaktion | Keine | bad | | S Scope | Verändert | bad | | C Vertraulichkeit | Keine | good | | I Integrität | Gering | warn | | A Verfügbarkeit | Hoch | bad | ## Referenzen - - - - - - - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-13201) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_