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.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 15 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Tornado before 6.4.1 HTTP Request Smuggling via Transfer-Encoding | |
| First Time appeared |
Tornadoweb
Tornadoweb tornado |
|
| Weaknesses | CWE-444 | |
| CPEs | cpe:2.3:a:tornadoweb:tornado:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Tornadoweb
Tornadoweb tornado |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-15T17:09:00.298Z
Reserved: 2026-03-23T19:30:06.622Z
Link: CVE-2024-14029
No data.
Status : Received
Published: 2026-09-15T16:17:06.893
Modified: 2026-09-15T16:17:06.893
Link: CVE-2024-14029
No data.
OpenCVE Enrichment
Updated: 2026-09-15T16:45:06Z
Weaknesses