Missing Release of Resource after Effective Lifetime Affecting nodejs20-debugsource package, versions <1:20.20.2-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.02% (4th percentile)

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  • Snyk IDSNYK-AMZN2023-NODEJS20DEBUGSOURCE-16068110
  • published15 Apr 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

NewCVE-2026-21714  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 nodejs20-debugsource to version 1:20.20.2-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-1577.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs20-debugsource package and not the nodejs20-debugsource package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A memory leak occurs in Node.js HTTP/2 servers when a client sends WINDOW_UPDATE frames on stream 0 (connection-level) that cause the flow control window to exceed the maximum value of 2³¹-1. The server correctly sends a GOAWAY frame, but the Http2Session object is never cleaned up.

This vulnerability affects HTTP2 users on Node.js 20, 22, 24 and 25.

CVSS Base Scores

version 3.1