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Affected Component
Analysis
python3
Patched
Name
CVE-2026-8328
Description
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.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
Analysis#
Vulnerability Ratings#
5.9
CVSSv4
NaN
other
Others affected components#
Resolved with patches#
python3 (buildroot:2025.02.x)
#
Title
Author
Resolve
1
gh-87451: Apply CVE-2021-4189 PASV fix to ftplib.ftpcp()
"Gregory P. Smith" <68491+gpshead@users.noreply.github.com>
CVE-2026-8328