Out-of-bounds Read Affecting python3.11-tkinter package, versions <0:3.11.13-4.el8_10


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.11% (30th 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 Learn

Learn about Out-of-bounds Read vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ROCKY8-PYTHON311TKINTER-15133983
  • published29 Jan 2026
  • disclosed1 Dec 2025

Introduced: 1 Dec 2025

CVE-2025-13836  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 python3.11-tkinter to version 0:3.11.13-4.el8_10 or higher.
This issue was patched in RLSA-2026:1374.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.11-tkinter package and not the python3.11-tkinter package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

When reading an HTTP response from a server, if no read amount is specified, the default behavior will be to use Content-Length. This allows a malicious server to cause the client to read large amounts of data into memory, potentially causing OOM or other DoS.

CVSS Base Scores

version 3.1