DEBIAN-CVE-2026-8328

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-8328
Published: 13 May 2026, 21:16
Last modified:11 Jul 2026, 21:00

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
4.0 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 May 2026, 21:16
Published
Vulnerability first disclosed
11 Jul 2026, 21:00
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v4.0•MEDIUM•Score: 5.9CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Systems

  • debian•pypy3

    all | all | all | all

  • debian•python2.7

    all

  • debian•python3.11

    all

  • debian•python3.13

    all | all | < 3.13.5-2+deb13u3 | < 3.13.14-1

  • debian•python3.14

    all | < 3.14.6-1

  • debian•python3.9

    all

References (1)