GHSA-MMPC-XJXR-5HF8

Vulnerability from github – Published: 2026-05-08 00:31 – Updated: 2026-05-13 01:37
VLAI
Summary
OpenStack Cyborg's Accelerator Request (ARQ) API does not enforce project ownership at any layer
Details

In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer. The project_id column in the database is never populated (NULL for every ARQ), database queries have no project filtering, and policy checks are self-referential (the authorize_wsgi decorator compares the caller's project_id with itself rather than the target resource). Any authenticated non-admin user can complete various actions such as deleting ARQs bound to other projects' instances, aka cross-tenant denial of service.

Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "openstack-cyborg"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "16.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-40214"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-282"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-13T01:37:26Z",
    "nvd_published_at": "2026-05-07T22:16:35Z",
    "severity": "MODERATE"
  },
  "details": "In OpenStack Cyborg before 16.0.1, the Accelerator Request (ARQ) API does not enforce project ownership at any layer. The project_id column in the database is never populated (NULL for every ARQ), database queries have no project filtering, and policy checks are self-referential (the authorize_wsgi decorator compares the caller\u0027s project_id with itself rather than the target resource). Any authenticated non-admin user can complete various actions such as deleting ARQs bound to other projects\u0027 instances, aka cross-tenant denial of service.",
  "id": "GHSA-mmpc-xjxr-5hf8",
  "modified": "2026-05-13T01:37:26Z",
  "published": "2026-05-08T00:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40214"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/openstack-cyborg/+bug/2144056"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openstack/cyborg"
    },
    {
      "type": "WEB",
      "url": "https://security.openstack.org/ossa/OSSA-2026-011.html"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2026/05/07/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "OpenStack Cyborg\u0027s Accelerator Request (ARQ) API does not enforce project ownership at any layer"
}



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