CVE-2025-4516 Affecting python3.13 package, versions <3.13.3-4


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.02% (4th 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-DEBIAN14-PYTHON313-11765885
  • published10 Aug 2025
  • disclosed15 May 2025

Introduced: 15 May 2025

CVE-2025-4516  (opens in a new tab)

How to fix?

Upgrade Debian:14 python3.13 to version 3.13.3-4 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 Debian. See How to fix? for Debian:14 relevant fixed versions and status.

There is an issue in CPython when using bytes.decode(&#34;unicode_escape&#34;, error=&#34;ignore|replace&#34;). If you are not using the "unicode_escape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode() call in a try-except catching the DecodeError.

CVSS Base Scores

version 3.1