Amazon Linux 2 : containerd, --advisory ALAS2ECS-2026-128 (ALASECS-2026-128)

high Nessus Plugin ID 323718

Synopsis

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

Description

The version of containerd installed on the remote host is prior to 2.1.7-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2ECS-2026-128 advisory.

Memory exhaustion DoS causing OOM kill of containerd process

NOTE: https://github.com/containerd/containerd/security/advisories/GHSA-jpcc-p29g-p8mq (CVE-2026-47262)

Image cache poisoning via unvalidated checkpoint image references, enabling cross-pod code execution

NOTE: https://github.com/containerd/containerd/security/advisories/GHSA-cvxm-645q-p574 (CVE-2026-50195)

Arbitrary host command execution through unvalidated image config labels propagated to containers

NOTE: https://github.com/containerd/containerd/security/advisories/GHSA-xhf5-7wjv-pqxp (CVE-2026-53488)

Arbitrary file read on host via symlinked container log paths during checkpoint restore

NOTE: https://github.com/containerd/containerd/security/advisories/GHSA-rgh6-rfwx-v388 (CVE-2026-53489)

Device and host mount injection via CDI annotations in checkpoint metadata (requires CDI enabled on node)

NOTE: https://github.com/containerd/containerd/security/advisories/GHSA-33vj-92qq-66hc (CVE-2026-53492)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update containerd' or or 'yum update --advisory ALAS2ECS-2026-128' to update your system.

Plugin Details

Severity: High

ID: 323718

File Name: al2_ALASECS-2026-128.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 6/30/2026

Updated: 6/30/2026

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: 58.02

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-47262

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.3

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2026-53488

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:containerd-stress, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:containerd, p-cpe:/a:amazon:linux:containerd-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: 6/29/2026

Vulnerability Publication Date: 6/19/2026

Reference Information

CVE: CVE-2026-47262, CVE-2026-50195, CVE-2026-53488, CVE-2026-53489, CVE-2026-53492

IAVA: 2026-A-0621

Detections

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