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[3.11] gh-119452: Fix a potential virtual memory allocation denial of service in http.server (GH-142216)#142298
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pablogsal merged 1 commit intopython:3.11fromJan 25, 2026
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…ial of service in http.server (pythonGH-142216)The CGI server on Windows could consume the amount of memory specifiedin the Content-Length header of the request even if the client does notsend such much data. Now it reads the POST request body by chunks,therefore the memory consumption is proportional to the amount of sentdata.(cherry picked from commit0e4f4f1)Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
This was referencedDec 5, 2025
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LGTM
pablogsal approved these changesJan 25, 2026
fa1aae0 intopython:3.11 23 checks passed
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The CGI server on Windows could consume the amount of memory specified
in the Content-Length header of the request even if the client does not
send such much data. Now it reads the POST request body by chunks,
therefore the memory consumption is proportional to the amount of sent
data.
(cherry picked from commit0e4f4f1)
Co-authored-by: Serhiy Storchakastorchaka@gmail.com