RHSA-2026:14653 — Security Advisory
Red Hat Security Advisory: python3.11 security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · May 7, 2026
Updated · October 16, 2026
Topic
An update for python3.11 is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.
Security Fix(es):
-
python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100)
-
python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.