[ CVE-2026-122224 · Published 4 Nov 2026 ]
Vulnerability in retspen webvirtcloud
CVSS 8.1
No fix listed yet
[ Description ]Official description
WebVirtCloud through commit bb920b0 contains a missing authorization vulnerability that allows low-privileged authenticated users to reach MigrateViewSet and CreateInstanceViewSet because no permission_classes are declared, so Django REST Framework defaults to AllowAny. Attackers can send requests to /api/v1/migrate/ or the compute instance create endpoint to migrate or undefine other users' virtual machines and create volumes and domains on any compute host.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/catborise/webvirtcloud/commit/1227674d8f5a5230e5c654267773aca4ebc5c717
- github.com/retspen/webvirtcloud
- github.com/retspen/webvirtcloud/blob/bb920b0a7ffdf00c09e994dc2e45f05bc9ec1bb3/instances…
- github.com/retspen/webvirtcloud/blob/bb920b0a7ffdf00c09e994dc2e45f05bc9ec1bb3/instances…
- github.com/retspen/webvirtcloud/issues/689
- hackmd.io/@hieuPenguinnn/webvirtcloud-api-missing-authz-migrate-create
- www.vulncheck.com/advisories/webvirtcloud-through-commit-bb920b0-missing-authorization-…