جزئیات آسیبپذیری
CVE-2026-13201
Kubevirt: virt-handler-rhel9: kubevirt: safepath symlink following in virt-handler enables notify socket hijacking and node-level vm disruption
شرح رسمی (انگلیسی)
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.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 7.3بالا | 3.1 | CVEProject cvelistV5 (CNA) (redhat) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H |
محصولات آسیبپذیر
| فروشنده | محصول | نسخهها | منبع |
|---|---|---|---|
| اطلاعات محصول ثبت نشده است. | |||
منابع و راهنماها
۱۳- https://access.redhat.com/errata/RHSA-2026:51031 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53655 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53671 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53684 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53721 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53728 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53763 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53797 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53826 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:53838 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:80941 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-13201 vdb-entryx_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2492203 issue-trackingx_refsource_REDHAT
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۴/۰۴
- آخرین بهروزرسانی
- ۱۴۰۵/۰۷/۲۱
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- redhat
پیشبینی بهرهبرداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهرهبرداری
- ندارد
- اثر فنی
- جزئی
ضعفها (CWE)
- CWE-61UNIX Symbolic Link (Symlink) Following