Description

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.

INFO

Published Date :

2026-03-30T19:07:28.317Z

Last Modified :

2026-03-30T19:07:28.317Z

Source :

hackerone
AFFECTED PRODUCTS

The following products are affected by CVE-2026-21714 vulnerability.

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REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-21714.

URL Resource
https://nodejs.org/en/blog/vulnerability/march-2026-security-releases cve-icon
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