Detections
Analytics
Amazon Linux 2023 : python3.13, python3.13-devel, python3.13-freethreading (ALAS2023-2026-1997)
high Nessus Plugin ID 332013
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1997 advisory.The incremental HTML parser (html.parser.HTMLParser) allows for CPUdenial-of-service through repeated unterminated markup declarations whenprocessing uncontrolled data. (CVE-2026-15308)
In the Tarfile.extract() function, the filter parameter is not passed properly when extracting hardlinks.
An affected system that extracts content from untrusted tar files could end up writing files with an unexpected uid/gid despite the user passing filter='data' to the extract() function. (CVE-2026-4360)
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 python3.13 --releasever 2023.12.20260803' or or 'dnf update --advisory ALAS2023-2026-1997 --releasever 2023.12.20260803' to update your system.See Also
https://alas.aws.amazon.com//AL2023/ALAS2023-2026-1997.html
https://alas.aws.amazon.com/faqs.html
Plugin Details
Severity: High
ID: 332013
File Name: al2023_ALAS2023-2026-1997.nasl
Version: 1.1
Type: Local
Agent: unix
Published: 8/4/2026
Updated: 8/4/2026
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.74
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2026-4360
CVSS v3
Risk Factor: Medium
Base Score: 5.3
Temporal Score: 4.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.7
Threat Score: 6.6
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-15308
Vulnerability Information
CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:python3.13-debug, p-cpe:/a:amazon:linux:python3.13-debuginfo, p-cpe:/a:amazon:linux:python3.13-debugsource, p-cpe:/a:amazon:linux:python3.13-devel, p-cpe:/a:amazon:linux:python3.13-freethreading-debug, p-cpe:/a:amazon:linux:python3.13-freethreading, p-cpe:/a:amazon:linux:python3.13-idle, p-cpe:/a:amazon:linux:python3.13-libs, p-cpe:/a:amazon:linux:python3.13-test, p-cpe:/a:amazon:linux:python3.13-tkinter, p-cpe:/a:amazon:linux:python3.13
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 8/4/2026
Vulnerability Publication Date: 6/11/2026
Reference Information
CVE: CVE-2026-15308, CVE-2026-4360
IAVA: 2026-A-0549