CVE-2026-49853: Python Tornado Http Splitting Xss
Tornado framework's error handling accepts and processes custom HTTP reason phrases without sufficient validation against Control Characters like CRLF (leading to HTTP Header Injection) or escaping before embedding into HTML response bodies (Cross-Site Scripting). Ensure that custom reason phrases are properly validated (e.g., matching a strict ABNF token pa
Pythongreprules fetch cve-2026-49853-python-tornado-http-splitting-xss --engine opengrepDescription
Tornado framework's error handling accepts and processes custom HTTP reason phrases without sufficient validation against Control Characters like CRLF (leading to HTTP Header Injection) or escaping before embedding into HTML response bodies (Cross-Site Scripting). Ensure that custom reason phrases are properly validated (e.g., matching a strict ABNF token pa
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