Inconsistent interpretation of HTTP requests in Tornado - CVE-2024-14029
Published: June 6, 2024 / Updated: September 16, 2026
Vulnerability identifier: #VU128145
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-14029
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform HTTP request smuggling.
The vulnerability exists due to inconsistent interpretation of HTTP requests in the Tornado HTTP request parser when processing requests with multiple Transfer-Encoding: chunked headers. A remote attacker can send a specially crafted request to perform HTTP request smuggling.
Exploitation requires Tornado to be deployed behind a proxy server that forwards requests containing multiple Transfer-Encoding: chunked headers.
Affected software
Tornado
pcs (Red Hat package)
pcs (Red Hat package)
How to mitigate CVE-2024-14029
Install security update from vendor's website.
Tornado - update to 6.4.1
pcs (Red Hat package) - addressed in versions 0.10.12-6.el8_6.14, 0.10.15-4.el8_8.12, 0.10.18-2.el8_10.10
pcs (Red Hat package) - addressed in versions 0.10.12-6.el8_6.14, 0.10.15-4.el8_8.12, 0.10.18-2.el8_10.10