Amazon Linux 2 : libsoup, --advisory ALAS2-2026-3141 (ALAS-2026-3141)

high Nessus Plugin ID 298144

Synopsis

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

Description

The version of libsoup installed on the remote host is prior to 2.56.0-6. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3141 advisory.

A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk. (CVE-2026-0719)

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

Run 'yum update libsoup' or or 'yum update --advisory ALAS2-2026-3141' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2-2026-3141.html

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

https://explore.alas.aws.amazon.com/CVE-2026-0719.html

Plugin Details

Severity: High

ID: 298144

File Name: al2_ALAS-2026-3141.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/5/2026

Updated: 2/5/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-0719

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libsoup, p-cpe:/a:amazon:linux:libsoup-devel, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:libsoup-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/5/2026

Vulnerability Publication Date: 10/23/2025

Reference Information

CVE: CVE-2026-0719

IAVA: 2025-A-0780