cyborg — security advisory

{
  "id": "eed51b497bcb3d49c2beee8799e4038ac311ec071a92b3b5202f93832d5348d8",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-40214",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-40214",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2026-40214",
    "products": [
      {
        "name": {
          "value": "cyborg",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "14.0.0-3+deb13u1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "14.0.0-3",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "cyborg",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "16.0.0+git+2026.04.26.b8edfa06f1-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "14.0.0-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "15.0.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "15.0.0~rc1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "15.0.0~rc1-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "15.0.0~rc1-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "16.0.0-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "16.0.0-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "16.0.0~rc1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "16.0.0~rc1-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "16.0.0~rc2-1",
            "evidence": "/affected/1/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2026-40214",
      "aliases": [
        "DEBIAN-CVE-2026-40214"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "14.0.0-3+deb13u1"
                }
              ]
            }
          ],
          "package": {
            "name": "cyborg",
            "purl": "pkg:deb/debian/cyborg?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "versions": [
            "14.0.0-3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40214.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "16.0.0+git+2026.04.26.b8edfa06f1-1"
                }
              ]
            }
          ],
          "package": {
            "name": "cyborg",
            "purl": "pkg:deb/debian/cyborg?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "14.0.0-3",
            "15.0.0-1",
            "15.0.0~rc1-1",
            "15.0.0~rc1-2",
            "15.0.0~rc1-3",
            "16.0.0-1",
            "16.0.0-2",
            "16.0.0~rc1-1",
            "16.0.0~rc1-2",
            "16.0.0~rc2-1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-40214.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-27T09:47:38.683567157Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-40214"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-40214"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-40214",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 461154,
  "published_at": "2026-05-07T22:16:35.047+00:00"
}