USN-8413-1 (UBUNTU-CVE-2026-40213)

Vulnerability from osv_ubuntu – Published: 2026-06-09 16:09 – Updated: 2026-06-09 16:09 – Source website
VLAI
Summary
cyborg vulnerabilities
Details

It was discovered that Cyborg did not properly enforce project ownership in the Accelerator Request (ARQ) API. An authenticated user could possibly use this issue to delete ARQs bound to other projects' instances, resulting in a cross-tenant denial of service. (CVE-2026-40214)

It was discovered that Cyborg used a permissive default policy that authorized any request carrying a valid authentication token, regardless of roles or scope, for multiple API endpoints. An authenticated user could possibly use this issue to perform unauthorized actions, such as reprogramming FPGA bitstreams on arbitrary compute nodes. (CVE-2026-40213)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-40213",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40214",
              "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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "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"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-40213",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-40214",
              "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"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "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": "It was discovered that Cyborg did not properly enforce project ownership in\nthe Accelerator Request (ARQ) API. An authenticated user could possibly use\nthis issue to delete ARQs bound to other projects\u0027 instances, resulting in\na cross-tenant denial of service. (CVE-2026-40214)\n\nIt was discovered that Cyborg used a permissive default policy that\nauthorized any request carrying a valid authentication token, regardless of\nroles or scope, for multiple API endpoints. An authenticated user could\npossibly use this issue to perform unauthorized actions, such as\nreprogramming FPGA bitstreams on arbitrary compute nodes. (CVE-2026-40213)",
  "id": "USN-8413-1",
  "modified": "2026-06-09T16:09:11Z",
  "published": "2026-06-09T16:09:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8413-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40213"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40214"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "cyborg vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-40213",
    "UBUNTU-CVE-2026-40214"
  ]
}



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