Detections
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AlmaLinux 8 : python3 (ALSA-2026:39320)

high Nessus Plugin ID 327046

Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:39320 advisory.

 * python: Python: CPU Denial of Service in HTML parser via repeated unterminated markup declarations (CVE-2026-15308)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for this issue 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-2026:39320

https://errata.almalinux.org/8/ALSA-2026-39320.html

Plugin Details

Severity: High

ID: 327046

File Name: alma_linux_ALSA-2026-39320.nasl

Version: 1.1

Type: Local

Published: 7/15/2026

Updated: 7/15/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.78

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-15308

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 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

Vulnerability Information

CPE: p-cpe:/a:alma:linux:platform-python, cpe:/o:alma:linux:8::sap_hana, p-cpe:/a:alma:linux:python3-test, cpe:/o:alma:linux:8::highavailability, p-cpe:/a:alma:linux:platform-python-devel, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::realtime, p-cpe:/a:alma:linux:python3-tkinter, cpe:/o:alma:linux:8::resilientstorage, p-cpe:/a:alma:linux:python3-libs, cpe:/o:alma:linux:8::sap, p-cpe:/a:alma:linux:python3-idle, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:platform-python-debug

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2026

Vulnerability Publication Date: 7/9/2026

Reference Information

CVE: CVE-2026-15308

CWE: 835

RHSA: 2026:39320