CVE-2026-122224
8.1, highRetspen webvirtcloud Missing Authorization Vulnerability
- CVSS
- 8.1, high high CVSS v3.1
- EPSS, next 30 days
- n/a
- Exploitation
- No public evidence
- Published
- 4 Nov 2026yesterday
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.
Details
- Vendor
- Retspen
- Product
- webvirtcloud
- Weakness
- CWE-862 (opens in a new tab)
- Status
- Deferred
- Updated
- 4 Nov 2026
- Assigner
- disclosure@vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
References 7
Patches and fixes 1
Other references 6
- github.com /retspen/webvirtcloud (opens in a new tab)
- github.com /retspen/webvirtcloud/blob/bb920b0a7ffdf00c09e994dc2e45f05bc9ec1bb3/instances/api/viewsets.py#L125-L162 (opens in a new tab)
- github.com /retspen/webvirtcloud/blob/bb920b0a7ffdf00c09e994dc2e45f05bc9ec1bb3/instances/api/viewsets.py#L174-L183 (opens in a new tab)
- github.com /retspen/webvirtcloud/issues/689 (opens in a new tab)
- hackmd.io /@hieuPenguinnn/webvirtcloud-api-missing-authz-migrate-create (opens in a new tab)
- vulncheck.com /advisories/webvirtcloud-through-commit-bb920b0-missing-authorization-in-rest-api-migrate-and-create-endpoints (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Beyond this page
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 5 Nov 2026, not the live upstream state.