FKIE_CVE-2026-54916

Vulnerability from fkie_nvd - Published: 2026-09-17 21:17 - Updated: 2026-09-24 21:25
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
NetBox Device Type Library is a collection of community-sourced device type definitions for import into NetBox. The absence of tests/init.py and the lack of --import-mode=importlib cause pytest prepend import mode to place the tests directory at the front of sys.path during collection. An unauthenticated contributor can add a module such as tests/git.py that shadows GitPython when tests/definitions_test.py executes from git import Git, Repo, or add tests/conftest.py for automatic collection-time execution. Python imports and runs the pull-request module before any test function, allowing arbitrary code execution on the GitHub Actions runner, test-result tampering, and access to tokens or network resources exposed to the workflow. This module-shadowing path is independent of the earlier pickle deserialization flaw and the separately tracked NETBOX_DT_LIBRARY_URL issue. This vulnerability is fixed by commit b0d9a3dadd0a0a9d3c93b0b2777559fd4bad1037.
References
security-advisories@github.comhttps://github.com/netbox-community/devicetype-library/commit/b0d9a3dadd0a0a9d3c93b0b2777559fd4bad1037
security-advisories@github.comhttps://github.com/netbox-community/devicetype-library/pull/4239
security-advisories@github.comhttps://github.com/netbox-community/devicetype-library/security/advisories/GHSA-wwg5-825x-83g6
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "devicetype-library",
          "vendor": "netbox-community",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c b0d9a3dadd0a0a9d3c93b0b2777559fd4bad1037g"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "NetBox Device Type Library is a collection of community-sourced device type definitions for import into NetBox. The absence of tests/init.py and the lack of --import-mode=importlib cause pytest prepend import mode to place the tests directory at the front of sys.path during collection. An unauthenticated contributor can add a module such as tests/git.py that shadows GitPython when tests/definitions_test.py executes from git import Git, Repo, or add tests/conftest.py for automatic collection-time execution. Python imports and runs the pull-request module before any test function, allowing arbitrary code execution on the GitHub Actions runner, test-result tampering, and access to tokens or network resources exposed to the workflow. This module-shadowing path is independent of the earlier pickle deserialization flaw and the separately tracked NETBOX_DT_LIBRARY_URL issue. This vulnerability is fixed by commit b0d9a3dadd0a0a9d3c93b0b2777559fd4bad1037."
    }
  ],
  "id": "CVE-2026-54916",
  "lastModified": "2026-09-24T21:25:27.050",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54916",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-18T17:24:10.034628Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-17T21:17:17.790",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/netbox-community/devicetype-library/commit/b0d9a3dadd0a0a9d3c93b0b2777559fd4bad1037"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/netbox-community/devicetype-library/pull/4239"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/netbox-community/devicetype-library/security/advisories/GHSA-wwg5-825x-83g6"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-427"
        },
        {
          "lang": "en",
          "value": "CWE-829"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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