Out-of-bounds write in the Brotli decoder ("Node2Shell") also affects the PyPI Brotli package

CVE-2026-111497 "Node2Shell" is an out-of-bounds write CWE-787 in Google'sBrotli decoder c/dec/decode.c. DecodeBlockTypeAndLength returns an ambiguousvalue for an invalid block switch, and the fast decode path discards itCWE-252, unchecked return value, so a crafted Brotli stream makes the...