CVE-2026-8328 Affecting python3.13 package, versions <3.13.5-2+e36


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.46% (38th percentile)

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  • Snyk IDSNYK-ECHOLATEST-PYTHON313-17982206
  • published15 Jul 2026
  • disclosed13 May 2026

Introduced: 13 May 2026

CVE-2026-8328  (opens in a new tab)

How to fix?

Upgrade Echo:latest python3.13 to version 3.13.5-2+e36 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.13 package and not the python3.13 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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 Base Scores

version 3.1