CVE-2026-116566 Affecting python3.13 package, versions <3.13.5-2+e44


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-ECHOLATEST-PYTHON313-22132836
  • published2 Nov 2026
  • disclosed29 Oct 2026

Introduced: 29 Oct 2026

NewCVE-2026-116566  (opens in a new tab)

How to fix?

Upgrade Echo:latest python3.13 to version 3.13.5-2+e44 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.

socket.getaddrinfo() previously accepted null bytes within host and port parameters which can cause the values to be silently truncated.

CVSS Base Scores

version 3.1