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CVE-2025-67725 Tornado is Vulnerable to Quadratic DoS via Repeated Header Coalescing

šŸ—“ļøĀ 12 Dec 2025Ā 05:49:41Reported byĀ GitHub_MTypeĀ 
cvelist
Ā cvelist
šŸ”—Ā www.cve.orgšŸ‘Ā 61Ā Views

Tornado before 6.5.3 suffers quadratic denial of service from repeated header coalescing in HTTPHeaders.add.

Related
Affected
Refs
[
  {
    "vendor": "tornadoweb",
    "product": "tornado",
    "versions": [
      {
        "version": "< 6.5.3",
        "status": "affected"
      }
    ]
  }
]

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12 Dec 2025 05:49Current
CVSS 3.17.5
EPSS0.00559
SSVC
61