Amazon Linux 2023 : credentials-fetcher (ALAS2023-2026-1792)

high Nessus Plugin ID 319875

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1792 advisory.

A denial of service vulnerability (GHSA-XMRV-PMRH-HHX2) was found in the bundled AWS SDK for Go v2 EventStream decoder used by credentials-fetcher. An attacker who can inject a malformed EventStream response frame with a crafted header value type byte outside the valid range can cause a panic, terminating the host process.

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 'dnf update credentials-fetcher --releasever 2023.12.20260608' or or 'dnf update --advisory ALAS2023-2026-1792 --releasever 2023.12.20260608' to update your system.

Plugin Details

Severity: High

ID: 319875

File Name: al2023_ALAS2023-2026-1792.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 6/8/2026

Updated: 6/8/2026

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:credentials-fetcher

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/8/2026

Vulnerability Publication Date: 6/8/2026

Detections

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