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Amazon Linux 2 : python, --advisory ALAS2-2026-3185 (ALAS-2026-3185)

medium Nessus Plugin ID 301258

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of python installed on the remote host is prior to 2.7.18-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3185 advisory.

 When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized. (CVE-2025-11468)

 User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype. (CVE-2025-15282)

 If the value passed to os.path.expandvars() is user-controlled aperformance degradation is possible when expanding environmentvariables. (CVE-2025-6075)

 When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.
 (CVE-2026-0672)

 User-controlled header names and values containing newlines can allow injecting HTTP headers.
 (CVE-2026-0865)

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 'yum update python' or or 'yum update --advisory ALAS2-2026-3185' to update your system.

See Also

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

https://explore.alas.aws.amazon.com/CVE-2025-6075.html

https://explore.alas.aws.amazon.com/CVE-2025-11468.html

https://explore.alas.aws.amazon.com/CVE-2025-15282.html

https://explore.alas.aws.amazon.com/CVE-2026-0672.html

https://explore.alas.aws.amazon.com/CVE-2026-0865.html

https://alas.aws.amazon.com//AL2/ALAS2-2026-3185.html

Plugin Details

Severity: Medium

ID: 301258

File Name: al2_ALAS-2026-3185.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/6/2026

Updated: 3/6/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-6075

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 2.3

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2026-0672

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:python-tools, p-cpe:/a:amazon:linux:python-test, p-cpe:/a:amazon:linux:python-debuginfo, p-cpe:/a:amazon:linux:python-devel, p-cpe:/a:amazon:linux:python-debug, p-cpe:/a:amazon:linux:python-libs, p-cpe:/a:amazon:linux:python, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:tkinter

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/6/2026

Vulnerability Publication Date: 6/26/2025

Reference Information

CVE: CVE-2025-11468, CVE-2025-15282, CVE-2025-6075, CVE-2026-0672, CVE-2026-0865

IAVA: 2025-A-0444-S, 2026-A-0142