Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write through asyncio.AbstractEventLoop.sockrecvfrominto in the Windows ProactorEventLoop datagram receive path. An attacker can trigger a ValueError-free out-of-bounds receive by supplying an nbytes value larger than the...

CVE-2026-3298

The method "sockrecvfrominto" 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...