CVE-2023-54397 (GCVE-0-2023-54397)
Vulnerability from cvelistv5
Published
2026-09-15 15:17
Modified
2026-09-17 14:48
Severity ?
9.0 (Critical) - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N
7.5 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
CWE
  • CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Summary
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 and smuggle requests when deployed behind certain proxies.
References
Impacted products
Vendor Product Version
tornadoweb tornado Version: 0   ≤
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