Tornado 6.6.0b1

{
  "id": "b2334ed1bb84cac5c56fd02e7af21e7ee8f313619573ffb276dfb203db6a7456",
  "url": "https://github.com/tornadoweb/tornado/releases/tag/v6.6.0b1",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "Tornado 6.6.0b1",
    "summary": "Tornado 6.6.0b1 includes security-related changes: HTTP header line folding was removed to avoid DoS risk, protections were added against cross-origin attacks, and fixes address cookie attribute injection and potential open redirects.",
    "evidence": "Line folding in HTTP headers is no longer supported. This was deprecated in Tornado 6.5 but is being removed sooner than originally scheduled to avoid DoS risk.",
    "products": [
      {
        "name": {
          "value": "Tornado",
          "evidence": "What's new in Tornado 6.6.0"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.0b1",
            "evidence": "v6.6.0b1: What's new in Tornado 6.6.0"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "fixed_cves": [],
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "github-tornadoweb-tornado",
  "document_id": 22762,
  "published_at": "2026-10-07T21:34:19+00:00"
}