Excessive Platform Resource Consumption within a Loop Affecting ecs-init package, versions <0:1.105.0-1.amzn2023


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.56% (43rd percentile)

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  • Snyk IDSNYK-AMZN2023-ECSINIT-17887814
  • published8 Jul 2026
  • disclosed2 Jun 2026

Introduced: 2 Jun 2026

CVE-2026-42504  (opens in a new tab)
CWE-1050  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 ecs-init to version 0:1.105.0-1.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1902.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ecs-init package and not the ecs-init package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.

CVSS Base Scores

version 3.1