CVE-2026-15310: falha de baixa gravidade em Python Software Foundation CPython
zipfile: bzip2/LZMA/Zstandard members decompress without a max_length bound, defeating chunked-read memory limits
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8Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 2.1epss 0.5%
When decompressing crafted zip files using the bzip/LZMA/Zstandard
compressions, Python could use an attacker-controlled size to
pre-allocate memory, possibly resulting in memory exhaustion.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Produtos afetados
Python Software Foundation · CPythonCVEs relacionadas — Python Software Foundation CPython
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Referências
https://github.com/python/cpython/commit/09a2e7e6678b4f65449e7ad8f112c48f944591e2https://github.com/python/cpython/commit/1b424c0178a01e155fd0267dc28a8fc1159b33a8https://github.com/python/cpython/commit/31980e84b9a708424a0a1dfecde3fc991e313f89https://github.com/python/cpython/commit/6257029de42ef89b67f3d20137de87d43e197530https://github.com/python/cpython/commit/9d167992b59cf5e23c66b9ed742b13f5925f7d70https://github.com/python/cpython/commit/c2bfbcdd1a11690507a10bc0998f95b8dc6b6fachttps://github.com/python/cpython/commit/dcdd406ddbfc4cb29b24c3df17cbabe21d316ce1https://github.com/python/cpython/commit/e2311cfb3dd518f008f312fe0631f4f7490d237ahttps://github.com/python/cpython/commit/f507e6946a3194e83e1d7b8ee6e14567175e46dehttps://github.com/python/cpython/commit/f897dbf2f36a5935700b7c2d94d4681d2136b7d4https://github.com/python/cpython/issues/156002https://github.com/python/cpython/pull/156003