Detections
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Echo: nodejs-16: security update to 16.20.2+e1nodejs-18: security update to 18.20.8+e2

medium Tenable Cloud Security Plugin ID 457240

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-21714)

Solution

Update the nodejs-16 library and its related packages to version 16.20.2+e1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-21714

Plugin Details

Severity: Medium

ID: 457240

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2026-21714

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/3/2026

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-21714