{
  "cveId": "CVE-2026-84366",
  "url": "https://patchblox.com/security/cve/CVE-2026-84366",
  "summary": "CVE-2026-84366 is fixed in python-scrapy on 1 platform by DEBIAN-CVE-2026-84366 (version 2.17.0-1), released September 3, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "python-scrapy: Scrapy is a high-level web crawling and scraping framework for Python",
  "description": "Scrapy is a high-level web crawling and scraping framework for Python. Prior to 2.17.0, in scrapy/core/downloader/handlers/s3.py, Scrapy\u0027s S3DownloadHandler converts an S3-scheme bucket and key request into a plaintext HTTP request to the corresponding S3 endpoint unless request.meta[\u0022is_secure\u0022] is explicitly enabled, then signs and sends the plaintext request with configured AWS credentials. A network attacker who can observe traffic between Scrapy and S3 can read the bucket and key path, AWS Authorization header, X-Amz-Security-Token when temporary credentials are used, S3 object contents, and S3 response headers. An active man-in-the-middle attacker can also modify the plaintext S3 response body, status code, and headers before Scrapy processes them, causing scraped-data poisoning, poisoned exports, HTTP cache poisoning when caching is enabled, or influence over later crawl targets through forged redirects or attacker-controlled links. Users making S3-scheme requests with AWS credentials are affected. This issue is fixed in version 2.17.0.",
  "published": "2026-09-01T21:18:47Z",
  "severity": "high",
  "cvss": 7.4,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "epss": 0.00254,
  "epssPercentile": 0.17133,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "python-scrapy",
      "release": "Debian 14",
      "fixedVersion": "2.17.0-1",
      "fix": "DEBIAN-CVE-2026-84366",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-84366",
      "released": "2026-09-03T01:35:34Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}