CVE-2026-48931

Published: Jun 22, 2026Modified: Jul 3, 2026

3.7

Vector

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

Exploitability: 2.2 / Impact: 1.4

Source: NVD

Description

A flaw in Node.js HTTP Agent can cause a client to accept as valid a response that is send before the client has sent the request. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

Affected (3)

Products: Nodejs: Node.js

Nodejs

1 product

Node.js

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Nodejs Node.js	Version 22.22.3
Nodejs Node.js	Version 24.16.0
Nodejs Node.js	Version 26.3.0

Related CWEs

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

References (4)

https://nodejs.org/en/blog/vulnerability/june-2026-security-releases

Source: support@hackerone.com

Vendor Advisory

http://www.openwall.com/lists/oss-security/2026/07/02/2

Source: af854a3a-2127-422b-91ae-364da2661108

https://github.com/nodejs/node/issues/63989

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitIssue TrackingThird Party Advisory

https://jdstaerk.substack.com/p/nodejs-security-fix-silently-broke

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

Timeline

No history available yet.