CVE-2024-14029
Tornado before 6.4.1 HTTP Request Smuggling via Transfer-Encoding
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating requests as having no message body and parsing the chunked body as a subsequent request. Attackers can exploit this inconsistency when Tornado is deployed behind proxies to perform HTTP request smuggling, enabling access control bypass, cache poisoning, or connection desynchronization.
| CWE | CWE-444 |
| Vendor | tornadoweb |
| Product | tornado |
| Published | Sep 15, 2026 |
| Last Updated | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
None
Affected Versions
tornadoweb / tornado
0 < 6.4.1
References
Credits
🔍 kenballus