[3.11] gh-119451: Fix a potential denial of service in http.client (GH-119454)#142141
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…thonGH-119454) Reading the whole body of the HTTP response could cause OOM if the Content-Length value is too large even if the server does not send a large amount of data. Now the HTTP client reads large data by chunks, therefore the amount of consumed memory is proportional to the amount of sent data. (cherry picked from commit 5a4c4a0) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
This was referenced Dec 1, 2025
vivian-rook added a commit to wolfi-dev/advisories that referenced this pull request Dec 8, 2025
python-3.11 Upstream Fix PR: python/cpython#142141 python-3.12 Upstream Fix PR: python/cpython#142140 python-3.13 Upstream Fix PR: python/cpython#142139 python-3.13 Local Fix PR: wolfi-dev/os#75166 Signed-off-by: Vivian Rook <vivian.rook@chainguard.dev>
github-merge-queuebot pushed a commit to wolfi-dev/advisories that referenced this pull request Dec 8, 2025
python-3.11 Upstream Fix PR: python/cpython#142141 python-3.12 Upstream Fix PR: python/cpython#142140 python-3.13 Upstream Fix PR: python/cpython#142139 python-3.13 Local Fix PR: wolfi-dev/os#75166 Signed-off-by: Vivian Rook <vivian.rook@chainguard.dev>
prashant1221 commented Jan 6, 2026
Could you share the expected timeline for merging this backport? Are there any pending changes on this PR? |
lvets commented Jan 22, 2026
We're unable to upgrade to 3.13, any idea when this fix might be added to 3.11? |
pablogsal approved these changes Jan 25, 2026
pablogsal merged commit afc40bd into python:3.11 22 checks passed
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Reading the whole body of the HTTP response could cause OOM if
the Content-Length value is too large even if the server does not send
a large amount of data. Now the HTTP client reads large data by chunks,
therefore the amount of consumed memory is proportional to the amount
of sent data.
(cherry picked from commit 5a4c4a0)
Co-authored-by: Serhiy Storchaka storchaka@gmail.com