CVE-2026-48937

nodejs: Node.js HTTP/2 Server: Denial of Service due to continued data acceptance after GOAWAY frame

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Severity

Moderate

Red Hat Product Security

5.3

CVSS 3.1

Review impact separately from score.

Published · June 19, 2026

Updated · October 17, 2026

Description

A flaw in the Node.js HTTP/2 API allows remote attackers to cause a Denial of Service (DoS) by sending data after a GOAWAY frame, exhausting server resources.

Statement

This Moderate DoS flaw in the Node.js HTTP/2 API allows remote attackers to exhaust server resources and cause service unavailability by continuously sending data after a GOAWAY frame.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Restrict Node.js HTTP/2 servers to trusted clients with host firewall or network segmentation. If HTTP/2 is not required, disable the HTTP/2 server API.

CVSS / CWE

CVSS 3.1 · 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE-400 · Uncontrolled Resource Consumption