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This fixes the following vulnerability:
- CVE-2026-8328:
The ftpcp() function in Lib/ftplib.py was not updated when
CVE-2021-4189 was fixed. While makepasv() was patched to replace
server-supplied PASV host addresses with the actual peer address
(getpeername()[0]), ftpcp() still calls parse227() directly and passes
the raw attacker-controllable IP address and port to
target.sendport(). This patch is related to CVE-2021-4189.
https://www.cve.org/CVERecord?id=CVE-2026-8328
Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
Signed-off-by: Thomas Perale <thomas.perale@mind.be>