Security advisory

{
  "id": "1a751245b8a1a4c18b1d39f1ead05e0df63099c6ecce91cd51f960dc287b5e58",
  "url": "https://osv.dev/vulnerability/CVE-2020-15801",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-15801",
    "summary": "In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations. The ._pth file (e.g., the python._pth file) is not affected.",
    "evidence": "osv:CVE-2020-15801",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-15801",
      "aliases": [
        "BIT-libpython-2020-15801",
        "BIT-python-2020-15801",
        "BIT-python-min-2020-15801",
        "CVE-2020-15801"
      ],
      "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/python/cpython",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1bf9cc509326bc42cd8cb1650eb9bf64550d817e"
                },
                {
                  "fixed": "13c94747c74437e594b7fc242ff7da668e81887c"
                },
                {
                  "introduced": "fa919fdf2583bdfead1df00e842f24f30b2a34bf"
                },
                {
                  "fixed": "580fbb018fd0844806119614d752b41fc69660f9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.7.0"
                      },
                      {
                        "fixed": "3.7.9"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:python:python:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.8.0"
                      },
                      {
                        "fixed": "3.8.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15801.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:56.401209028Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-398330.html",
        "https://security.netapp.com/advisory/ntap-20200731-0003/",
        "https://bugs.python.org/issue41304",
        "https://github.com/python/cpython/pull/21495"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-15801",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383142,
  "published_at": "2020-07-17T03:15:11.33+00:00"
}