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Node.js Module Undici 7.17.x < 7.24.0 DoS

medium Nessus Plugin ID 309958

Synopsis

A module in the Node.js JavaScript run-time environment is affected by a denial of service vulnerability.

Description

The nodejs module Undici detected on the host is version 7.17.x prior to 7.24.0. It is, therefore, affected by a denial of service vulnerability. When the deduplication interceptor is enabled, response data for deduplicated requests is accumulated in memory for downstream handlers. An unauthenticated, remote attacker can exploit this, via large or chunked responses and concurrent identical requests, to cause high memory usage and potential process termination.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Undici version 7.24.0 or later.

See Also

http://www.nessus.org/u?3df7c949

Plugin Details

Severity: Medium

ID: 309958

File Name: nodejs_module_undici_CVE-2026-2581.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 4/23/2026

Updated: 4/23/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5.4

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

CVSS Score Source: CVE-2026-2581

CVSS v3

Risk Factor: Medium

Base Score: 5.9

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

Vulnerability Information

CPE: cpe:/a:undici:undici

Required KB Items: installed_sw/Node.js, Host/nodejs/modules/enumerated

Patch Publication Date: 3/12/2026

Vulnerability Publication Date: 3/12/2026

Reference Information

CVE: CVE-2026-2581

IAVB: 2026-B-0072