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CVE-2026-82397 Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loop

🗓️ 31 Aug 2026 21:28:13Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 12 Views

DoS in Tornado before 6.5.8 via unbounded urlencoded body parsing stalling the event loop.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-82397
31 Aug 202621:28
cve
euvd
EUVD
EUVD-2026-68892
31 Aug 202621:28
euvd
nvd
NVD
CVE-2026-82397
31 Aug 202622:17
nvd
ptsecurity
Positive Technologies
PT-2026-84049
31 Aug 202600:00
ptsecurity
[
  {
    "vendor": "tornadoweb",
    "product": "tornado",
    "versions": [
      {
        "version": "< 6.5.8",
        "status": "affected"
      }
    ]
  }
]

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