When `CURLOPT_INTERFACE` (or the command line tool’s `–interface` option) is
set with one of the documented prefixes (`if!`, `host!`, `ifhost!`), that
binding is not part of the connection reuse key, so a later transfer asking
for a different source can silently reuse an existing connection and go out
from the earlier transfer’s source address
2026年10月21日
CVE-2026-107929 – When `CURLOPT_INTERFACE` (or the command line tool’s `–interface` option) is set with one
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