CVE-2026-48619
nodejs: Node.js: Denial of Service via unlimited HTTP/2 ORIGIN frames
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · June 26, 2026
Updated · October 19, 2026
Description
A flaw was found in Node.js. A malicious server can exploit the HTTP/2 client by sending an unlimited number of ORIGIN frames. This can lead to an Out of Memory error on the client, resulting in a denial of service.
Statement
This Moderate flaw in the Node.js HTTP/2 client can lead to a denial of service. A malicious server could exploit this by sending an excessive number of ORIGIN frames, causing the client to consume all available memory. This affects Red Hat products utilizing Node.js as an HTTP/2 client.
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
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.0 · 5.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE-770 · Allocation of Resources Without Limits or Throttling