VDB

CVE-2026-8328

CVE-2026-8328 PUBLISHED CVSS 5.900000095367432 MEDIUM

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.

EPSS 0.05% · 16.2th percentile

Risk Scores

CVSS v4.0
5.900000095367432
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
EPSS Score
0.05%
16.2th percentile

Affected Products

VendorProductVersions
Python Software FoundationCPython0

Timeline

  • May 13, 2026 CVE Published
  • May 14, 2026 EPSS Score
  • May 14, 2026 PoC Published
  • May 14, 2026 PoC Published
  • May 14, 2026 CVE Updated
  • May 15, 2026 Security Advisory
  • May 18, 2026 EPSS Score
  • May 19, 2026 EPSS Score
  • May 20, 2026 EPSS Score
  • May 21, 2026 EPSS Score
  • May 22, 2026 EPSS Score
  • May 23, 2026 EPSS Score

References

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