Detections
Analytics

Amazon Linux 2 : rust, --advisory ALAS2-2026-3808 (ALAS-2026-3808)

high Nessus Plugin ID 328831

Synopsis

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

Description

The version of rust installed on the remote host is prior to 1.97.0-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3808 advisory.

 gix-submodule before 0.29.0 (gitoxide before 0.5.21, gix before 0.84.0) incorrectly validates the update field in .gitmodules, allowing attackers to bypass the CommandForbiddenInModulesConfiguration guard when a submodule has been initialized with only partial configuration in .git/config. An attacker can inject arbitrary shell commands via the update field in .gitmodules that will be executed when Submodule::update() is called on a previously-initialized submodule, enabling remote code execution.
 (CVE-2026-40034)

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 rust' or or 'yum update --advisory ALAS2-2026-3808' to update your system.

See Also

https://alas.aws.amazon.com//AL2/ALAS2-2026-3808.html

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

https://explore.alas.aws.amazon.com/CVE-2026-40034.html

Plugin Details

Severity: High

ID: 328831

File Name: al2_ALAS-2026-3808.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/21/2026

Updated: 7/21/2026

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: Medium

Score: 4.9

Percentile: 58.12

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-2026-40034

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

CVSS v4

Risk Factor: High

Base Score: 8.5

Threat Score: 5.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:cargo, p-cpe:/a:amazon:linux:clippy, p-cpe:/a:amazon:linux:rust-analyzer, p-cpe:/a:amazon:linux:rust-debugger-common, p-cpe:/a:amazon:linux:rust-doc, p-cpe:/a:amazon:linux:rust-gdb, p-cpe:/a:amazon:linux:rust-src, p-cpe:/a:amazon:linux:rust-std-static, p-cpe:/a:amazon:linux:rust-toolset-srpm-macros, p-cpe:/a:amazon:linux:rust-toolset, p-cpe:/a:amazon:linux:rust, p-cpe:/a:amazon:linux:rustfmt

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/20/2026

Vulnerability Publication Date: 5/5/2026

Reference Information

CVE: CVE-2026-40034