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RHEL 9 : python3.14 (RHSA-2026:28247)

high Nessus Plugin ID 322316

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:28247 advisory.

 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: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786)

 * python: Python: Cross-Site Scripting (XSS) vulnerability in http.cookies module (CVE-2026-6019)

 Bug Fix(es) and Enhancement(s):

 * [9.8.z]Update python3.14 to 3.14.5 for the incremental GC changes (JIRA:RHEL-180642)

 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2026:28247

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=2458049

https://bugzilla.redhat.com/show_bug.cgi?id=2460869

http://www.nessus.org/u?3ccdc37e

Plugin Details

Severity: High

ID: 322316

File Name: redhat-RHSA-2026-28247.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/24/2026

Updated: 6/24/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-6019

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7

Threat Score: 6.1

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-4786

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:python3.14, p-cpe:/a:redhat:enterprise_linux:python3.14-devel, p-cpe:/a:redhat:enterprise_linux:python3.14-libs, p-cpe:/a:redhat:enterprise_linux:python3.14-tkinter, p-cpe:/a:redhat:enterprise_linux:python3.14-debug, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-debug, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-devel, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-idle, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-libs, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-test, p-cpe:/a:redhat:enterprise_linux:python3.14-freethreading-tkinter, p-cpe:/a:redhat:enterprise_linux:python3.14-idle, p-cpe:/a:redhat:enterprise_linux:python3.14-test, cpe:/o:redhat:rhel_eus:9.8

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/23/2026

Vulnerability Publication Date: 2/12/2026

Reference Information

CVE: CVE-2026-4786, CVE-2026-6019

CWE: 79, 88

RHSA: 2026:28247