https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-01T04:13:00.113334+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-8328 CVE-2026-8328 — FTP PASV SSRF, ftpcp() does not use actual peer address, trusts server-supplied PASV host address 2026-10-01T04:13:01.310035+00:00

Affected: Python Software Foundation CPython

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.