Security advisory

{
  "id": "e5d4bfaec0962949edbc0ae1bc11066f6f9130ad42c306c0af4b95a2920bd69a",
  "url": "https://osv.dev/vulnerability/CVE-2017-14158",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-14158",
    "summary": "Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.",
    "evidence": "osv:CVE-2017-14158",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2017-14158",
      "aliases": [
        "CVE-2017-14158",
        "GHSA-h7wm-ph43-c39p",
        "PYSEC-2017-83"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/scrapy/scrapy",
              "type": "GIT",
              "events": [
                {
                  "introduced": "5f69ec98f70e1e1e5f65fb36eb1cfb23d0be5b45"
                },
                {
                  "last_affected": "5f69ec98f70e1e1e5f65fb36eb1cfb23d0be5b45"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:scrapy:scrapy:1.4:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.4"
                      },
                      {
                        "last_affected": "1.4"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.4",
            "1.4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-14158.json"
          }
        }
      ],
      "modified": "2026-10-20T10:47:46.760675704Z",
      "provider": "osv",
      "references": [
        "https://github.com/scrapy/scrapy/issues/482"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-14158",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 379693,
  "published_at": "2017-09-05T17:29:00.23+00:00"
}