Detections
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Amazon Linux 2023 : python3.12, python3.12-devel, python3.12-idle (ALAS2023-2026-1821)

medium Nessus Plugin ID 319801

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1821 advisory.

 The import hook in CPython that handles legacy *.pyc files (SourcelessFileLoader) is incorrectly handled in FileLoader (a base class) and so does not use io.open_code() to read the .pyc files. sys.audit handlers for this audit event therefore do not fire. (CVE-2026-2297)

 http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.
 (CVE-2026-6019)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'dnf update python3.12 --releasever 2023.12.20260608' or or 'dnf update --advisory ALAS2023-2026-1821 --releasever 2023.12.20260608' to update your system.

See Also

https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1821.html

https://alas.aws.amazon.com/faqs.html

https://explore.alas.aws.amazon.com/CVE-2026-2297.html

https://explore.alas.aws.amazon.com/CVE-2026-6019.html

Plugin Details

Severity: Medium

ID: 319801

File Name: al2023_ALAS2023-2026-1821.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/8/2026

Updated: 6/8/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3.8

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: Medium

Base Score: 5.7

Threat Score: 4.7

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-2297

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:python3.12-idle, p-cpe:/a:amazon:linux:python3.12-debugsource, p-cpe:/a:amazon:linux:python3.12-test, p-cpe:/a:amazon:linux:python3.12-libs, p-cpe:/a:amazon:linux:python3.12-devel, p-cpe:/a:amazon:linux:python3.12-debug, p-cpe:/a:amazon:linux:python3.12-debuginfo, p-cpe:/a:amazon:linux:python3.12-tkinter, p-cpe:/a:amazon:linux:python3.12, cpe:/o:amazon:linux:2023

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/8/2026

Vulnerability Publication Date: 2/12/2026

Reference Information

CVE: CVE-2026-2297, CVE-2026-6019

IAVA: 2026-A-0142-S