Arbitrary Code Injection Affecting python3-tkinter package, versions <0:3.12.12-3.el10_1.1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.46% (37th percentile)

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  • Snyk IDSNYK-RHEL10-PYTHON3TKINTER-15691322
  • published19 Mar 2026
  • disclosed20 Jan 2026

Introduced: 20 Jan 2026

CVE-2026-0865  (opens in a new tab)
CWE-74  (opens in a new tab)

How to fix?

Upgrade RHEL:10 python3-tkinter to version 0:3.12.12-3.el10_1.1 or higher.
This issue was patched in RHSA-2026:4713.

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 RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

User-controlled header names and values containing newlines can allow injecting HTTP headers.

References

CVSS Base Scores

version 3.1