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CVE-2023-54397 Tornado before 6.3.3 HTTP Request Smuggling via Content-Length

🗓️ 15 Sep 2026 15:17:52Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. Attackers can send crafted HTTP requests with these characters to bypass proxy validation an...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2023-54397
15 Sep 202618:00
circl
cve
CVE
CVE-2023-54397
15 Sep 202615:17
cve
debiancve
Debian CVE
CVE-2023-54397
15 Sep 202615:17
debiancve
euvd
EUVD
EUVD-2023-60690
15 Sep 202615:17
euvd
nvd
NVD
CVE-2023-54397
15 Sep 202616:17
nvd
osv
OSV
DEBIAN-CVE-2023-54397
15 Sep 202616:17
osv
osv
OSV
GHSA-QPPV-J76H-2RPX Tornado vulnerable to HTTP request smuggling via improper parsing of `Content-Length` fields and chunk lengths
14 Aug 202321:34
osv
osv
OSV
UBUNTU-CVE-2023-54397
16 Sep 202600:00
osv
ptsecurity
Positive Technologies
PT-2026-92037
15 Sep 202600:00
ptsecurity
ubuntucve
UbuntuCve
CVE-2023-54397
16 Sep 202600:00
ubuntucve
[
  {
    "vendor": "tornadoweb",
    "product": "tornado",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:pypi/tornado",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "6.3.3"
      },
      {
        "version": "6.3.3",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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15 Sep 2026 15:17Current
CVSS 3.17.5
CVSS 49
EPSS0.00367
21