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Tornado: Event Loop Blocking And Excess Memory Use From Chunked Bodies With Many Small Chunks

🗓️ 29 Oct 2026 05:24:50Reported by Veracode Vulnerability DatabaseType 
veracode
 veracode
🔗 sca.analysiscenter.veracode.com👁 6 Views

Unauthenticated DoS in Tornado and SimpleAsyncHTTPClient via chunked bodies blocking the loop.

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Rows per page
Vulners
Node
tornadotornadoRange0.2–6.6rc1python

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29 Oct 2026 05:24Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.3
EPSS0.00384
SSVC
6