PYSEC-2026-2854

Vulnerability from pysec - Published: 2026-07-13 15:15 - Updated: 2026-07-13 16:05
VLAI
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
Impacted products
Name purl
openstack-cyborg pkg:pypi/openstack-cyborg
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "openstack-cyborg",
        "purl": "pkg:pypi/openstack-cyborg"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "16.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.1.0",
        "0.2.0",
        "1.0.0",
        "1.0.0.0b3",
        "1.0.0.0rc1",
        "10.0.0",
        "10.0.0.0rc1",
        "10.1.0",
        "11.0.0",
        "11.0.0.0rc1",
        "12.0.0",
        "12.0.0.0rc1",
        "13.0.0",
        "13.0.0.0rc1",
        "14.0.0",
        "14.0.0.0rc1",
        "14.1.0",
        "15.0.0",
        "15.0.0.0rc1",
        "15.0.1",
        "16.0.0",
        "16.0.0.0rc1",
        "16.0.0.0rc2",
        "2.0.0",
        "2.0.0.0rc1",
        "3.0.0",
        "3.0.0.0rc1",
        "3.0.1",
        "4.0.0",
        "4.0.0.0rc1",
        "4.0.1",
        "5.0.0",
        "5.0.0.0rc1",
        "5.0.0.0rc2",
        "5.0.1",
        "6.0.0",
        "6.0.0.0rc1",
        "6.0.0.0rc2",
        "6.0.1",
        "7.0.0",
        "7.0.0.0rc1",
        "7.0.1",
        "8.0.0",
        "8.0.0.0rc1",
        "8.0.1",
        "9.0.0",
        "9.0.0.0rc1"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-40214",
    "GHSA-mmpc-xjxr-5hf8"
  ],
  "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": "PYSEC-2026-2854",
  "modified": "2026-07-13T16:05:26.693154Z",
  "published": "2026-07-13T15:15:41.429295Z",
  "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"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/openstack-cyborg"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-mmpc-xjxr-5hf8"
    }
  ],
  "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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