# CVE-2026-122224: WebVirtCloud through commit bb920b0 Missing Authorization in REST API Migrate and Create Endpoints

Status: published. Published: 2026-11-04. Updated: 2026-11-04.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/catborise/webvirtcloud/commit/1227674d8f5a5230e5c654267773aca4ebc5c717

## Affected products and versions

- retspen / webvirtcloud (retspen/webvirtcloud): bb920b0a7ffdf00c09e994dc2e45f05bc9ec1bb3 (affected, git). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 7.2 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 8.1 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-862

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/retspen/webvirtcloud/issues/689 (CNA: VulnCheck; issue-tracking)

- https://github.com/catborise/webvirtcloud/commit/1227674d8f5a5230e5c654267773aca4ebc5c717 (CNA: VulnCheck; patch)

- https://github.com/retspen/webvirtcloud/blob/bb920b0a7ffdf00c09e994dc2e45f05bc9ec1bb3/instances/api/viewsets.py#L125-L162 (CNA: VulnCheck; technical-description)

- https://github.com/retspen/webvirtcloud/blob/bb920b0a7ffdf00c09e994dc2e45f05bc9ec1bb3/instances/api/viewsets.py#L174-L183 (CNA: VulnCheck; technical-description)

- https://hackmd.io/@hieuPenguinnn/webvirtcloud-api-missing-authz-migrate-create (CNA: VulnCheck; technical-description)

- https://github.com/retspen/webvirtcloud (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/webvirtcloud-through-commit-bb920b0-missing-authorization-in-rest-api-migrate-and-create-endpoints (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-122224; retrieved 2026-11-04; source updated 2026-11-04

Revision: 86b92ae7fe6d10a700ca2fa1729a2dd3853b963a37268bad5e7f6b7b3070eaf6

Canonical: https://y2.dev/cve/CVE-2026-122224

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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