Detections
Analytics

Amazon Linux 2 : librsvg2 (ALAS-2026-4070)

high Nessus Plugin ID 377893

Synopsis

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

Description

The version of librsvg2 installed on the remote host is prior to 2.40.20-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-4070 advisory.

 A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions (Xincludes) with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attacker could potentially exploit this to cause a denial of service or execute arbitrary code. (CVE-2026-96889)

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 librsvg2' or or 'yum update --advisory ALAS2-2026-4070' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2-2026-4070.html

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

https://explore.alas.aws.amazon.com/CVE-2026-96889.html

Plugin Details

Severity: High

ID: 377893

File Name: al2_ALAS-2026-4070.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 11/9/2026

Updated: 11/9/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 98.82

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-96889

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:librsvg2-debuginfo, p-cpe:/a:amazon:linux:librsvg2-devel, p-cpe:/a:amazon:linux:librsvg2-tools, p-cpe:/a:amazon:linux:librsvg2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/9/2026

Vulnerability Publication Date: 9/23/2026

Reference Information

CVE: CVE-2026-96889