CVE-2026-21714 Affecting nodejs-nodemon package, versions <0:3.0.3-3.module+el9.7.0+40025+0e0cf6b2


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.45% (36th percentile)

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  • Snyk IDSNYK-ROCKY9-NODEJSNODEMON-16011287
  • published13 Apr 2026
  • disclosed30 Mar 2026

Introduced: 30 Mar 2026

CVE-2026-21714  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 nodejs-nodemon to version 0:3.0.3-3.module+el9.7.0+40025+0e0cf6b2 or higher.
This issue was patched in RLSA-2026:7350.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs-nodemon package and not the nodejs-nodemon package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 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