Reachable Assertion Affecting nodejs24-libs package, versions <1:24.18.1-1.amzn2023.0.2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.2% (10th percentile)

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  • Snyk IDSNYK-AMZN2023-NODEJS24LIBS-18911553
  • published18 Aug 2026
  • disclosed4 Aug 2026

Introduced: 4 Aug 2026

NewCVE-2026-58045  (opens in a new tab)
CWE-617  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 nodejs24-libs to version 1:24.18.1-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-2059.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs24-libs package and not the nodejs24-libs package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw in Node.js allows a spoofed TypedArray byteLength to trigger a reachable assertion in the synchronous node:zlib APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected.

Repeated exploitation of this condition can result in a denial of service.

This vulnerability affects Node.js 22.x, 24.x, and 26.x.

CVSS Base Scores

version 3.1