Security advisory

{
  "id": "3bb875f32b42f7bdb7d3e62b976816b4ade4d29d0966766fe82944e88dec80bf",
  "url": "https://osv.dev/vulnerability/CVE-2022-42037",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-42037",
    "summary": "The d8s-asns package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-csv package. The affected version is 0.1.0.",
    "evidence": "osv:CVE-2022-42037",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2022-42037",
      "aliases": [
        "CVE-2022-42037",
        "PYSEC-2022-43021",
        "PYSEC-2022-43036"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/democritus-project/d8s-asns",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d9ee7e1697f00b3c73c12bddb3c67e22482d83e3"
                },
                {
                  "last_affected": "d9ee7e1697f00b3c73c12bddb3c67e22482d83e3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:democritus:d8s-asns:0.1.0:*:*:*:*:python:*:*",
                    "range": [
                      {
                        "introduced": "0.1.0"
                      },
                      {
                        "last_affected": "0.1.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.1.0",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-42037.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.108256245Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/42xxx/CVE-2022-42037.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-42037",
        "https://github.com/democritus-project/d8s-asns/issues/9",
        "https://pypi.org/project/d8s-asns/",
        "https://pypi.org/project/democritus-csv/"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/42xxx/CVE-2022-42037.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-42037",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 494622,
  "published_at": "2022-10-11T00:00:00+00:00"
}