Amazon Linux 2 : apache-ivy (ALAS-2026-3993)

medium Nessus Plugin ID 365192

Synopsis

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

Description

The version of apache-ivy installed on the remote host is prior to 2.3.0-4. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3993 advisory.

The PackagerResolver of Apache Ivy is able to download onlineartifacts and to (re)package them in a format defined by apackager.xml file. This repackaging is done by an Ant script, which isstored in a subdirectory of the configured buildRoot directory. Thissubdirectory is calculated based on modules coordinates, like theorganisation, name or version.

If one of the coordinates contains ../ sequences - which are validcharacters for Ivy coordinates in general- it is possible to break outof the configured buildRoot directory where other files can beoverwritten.

In order to exploit this vulnerability an attacker needs to haveaccess to a packager repository and add or modify the coordinates inivy.xml files to have such ../ sequences.

Users of Apache Ivy 2.0.0 to 2.5.3 (inclusive) should upgrade to Ivy 2.6.0. (CVE-2026-26032)

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 apache-ivy' or or 'yum update --advisory ALAS2-2026-3993' to update your system.

Plugin Details

Severity: Medium

ID: 365192

File Name: al2_ALAS-2026-3993.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 10/12/2026

Updated: 10/12/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.92

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2026-26032

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:apache-ivy-javadoc, p-cpe:/a:amazon:linux:apache-ivy

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2026

Vulnerability Publication Date: 7/15/2026

Reference Information

CVE: CVE-2026-26032

Detections

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