ubuntu-cve-2026-40214
Vulnerability from osv_ubuntu
Published
2026-05-07 22:16
Modified
2026-06-09 19:26
Summary
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
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cyborg-agent",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
          },
          {
            "binary_name": "cyborg-api",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
          },
          {
            "binary_name": "cyborg-common",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
          },
          {
            "binary_name": "cyborg-conductor",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
          },
          {
            "binary_name": "python3-cyborg",
            "binary_version": "14.0.0-3+deb13u1build0.25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "cyborg",
        "purl": "pkg:deb/ubuntu/cyborg@14.0.0-3+deb13u1build0.25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "14.0.0-3+deb13u1build0.25.10.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "13.0.0-2",
        "14.0.0-2",
        "14.0.0-3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cyborg-agent",
            "binary_version": "16.0.0-2ubuntu0.1"
          },
          {
            "binary_name": "cyborg-api",
            "binary_version": "16.0.0-2ubuntu0.1"
          },
          {
            "binary_name": "cyborg-common",
            "binary_version": "16.0.0-2ubuntu0.1"
          },
          {
            "binary_name": "cyborg-conductor",
            "binary_version": "16.0.0-2ubuntu0.1"
          },
          {
            "binary_name": "python3-cyborg",
            "binary_version": "16.0.0-2ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "cyborg",
        "purl": "pkg:deb/ubuntu/cyborg@16.0.0-2ubuntu0.1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "16.0.0-2ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "14.0.0-3",
        "15.0.0-1",
        "16.0.0~rc1-2",
        "16.0.0-2"
      ]
    }
  ],
  "aliases": [],
  "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": "UBUNTU-CVE-2026-40214",
  "modified": "2026-06-09T19:26:34Z",
  "published": "2026-05-07T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40214"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-40214"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2026/05/07/6"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.launchpad.net/openstack-cyborg/+bug/2144056"
    },
    {
      "type": "REPORT",
      "url": "https://security.openstack.org/ossa/OSSA-2026-011.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8413-1"
    }
  ],
  "related": [
    "USN-8413-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-40214"
  ]
}



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