CVE-2026-8328: stop ftplib.ftpcp() trusting the IPv4 address the source
server advertises in its PASV reply, completing the CVE-2021-4189 fix
CVE-2026-15806: scope HTTPPasswordMgr credentials by URL scheme, so a
credential stored for an https URI is no longer sent to the matching http URI
CVE-2026-19672: normalize tar member names containing .. components in the
tarfile tar/data extraction filters, so a name that leaves the destination and
comes back no longer creates directories outside the destination
CVE-2026-87910: honor a None result from the extraction filter when tarfile
falls back to extracting a hardlink target, so a rejected member is skipped
instead of being written at the link's path