Out-of-bounds Read Affecting python3-tkinter package, versions <0:3.12.12-3.0.1.el10_1


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.15% (36th percentile)

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  • Snyk IDSNYK-ORACLE10-PYTHON3TKINTER-15207986
  • published5 Feb 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 Oracle:10 python3-tkinter to version 0:3.12.12-3.0.1.el10_1 or higher.
This issue was patched in ELSA-2026-1828.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-tkinter package and not the python3-tkinter package as distributed by Oracle. See How to fix? for Oracle:10 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