CVE-2026-3298 (GCVE-0-2026-3298)
Vulnerability from cvelistv5
Published
2026-04-21 14:45
Modified
2026-06-10 18:05
Severity ?
8.8 (High) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
CWE
Summary
The method "sock_recvfrom_into()" of "asyncio.ProacterEventLoop" (Windows only) was missing a boundary check for the data buffer when using nbytes parameter. This allowed for an out-of-bounds buffer write if data was larger than the buffer size. Non-Windows platforms are not affected.
References
Impacted products
Vendor Product Version
Python Software Foundation CPython Version: 3.11.0
Version: 3.14.0a1
Version: 3.15.0a1
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