CVE-2025-8194 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
0.71% (53rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-PYTHON313-17982187
  • published15 Jul 2026
  • disclosed28 Jul 2025

Introduced: 28 Jul 2025

CVE-2025-8194  (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.

There is a defect in the CPython “tarfile” module affecting the “TarFile” extraction and entry enumeration APIs. The tar implementation would process tar archives with negative offsets without error, resulting in an infinite loop and deadlock during the parsing of maliciously crafted tar archives.

This vulnerability can be mitigated by including the following patch after importing the “tarfile” module:  https://gist.github.com/sethmlarson/1716ac5b82b73dbcbf23ad2eff8b33e1

CVSS Base Scores

version 3.1