[3.13] gh-119452: Fix a potential virtual memory allocation denial of service in http.server (GH-119455)#142130
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…ial of service in http.server (pythonGH-119455) 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, so that the memory consumption is proportional to the amount of sent data. (cherry picked from commit 29c657a) Co-authored-by: Serhiy Storchaka <[email protected]>
This was referenced Dec 1, 2025
serhiy-storchaka merged commit 6c922bb into python:3.13 75 of 77 checks passed
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GH-142185 is a backport of this pull request to the 3.13 branch. |
hugovk added a commit to hugovk/cpython that referenced this pull request Dec 2, 2025
…tion denial of service in http.server (pythonGH-119455) (pythonGH-142130)" This reverts commit 6c922bb.
Yhg1s pushed a commit that referenced this pull request Dec 2, 2025
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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,
so that the memory consumption is proportional to the amount of sent
data.
(cherry picked from commit 29c657a)
Co-authored-by: Serhiy Storchaka [email protected]