CVE-2026-21714 in Node.js
Zusammenfassung (Englisch)
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.
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Veröffentlichung
30.03.2026
Status
Bestätigt
Einträge
VulDB provides additional information and datapoints for this CVE:
| ID | Schwachstelle | CWE | Aus | Mas | CVE |
|---|---|---|---|---|---|
| 354147 | Node.js HTTP/2 Server Denial of Service | 400 | Nicht definiert | Offizieller Fix | CVE-2026-21714 |