CVE-2026-105481

CVE Details

Release Date:	2026-10-23
Impact:	Moderate	What is this?

Description

A flaw in Node.js HTTP Agent connection reuse can cause a client to accept as valid a response that was sent before the client has sent the request. This is an incomplete fix of CVE-2026-48931. The guard that destroys idle keep-alive sockets when unexpected data arrives only runs when the event loop polls for I/O. If an unsolicited response has already reached the socket but has not been read yet when the socket is handed to a new request, for example because the event loop was busy with synchronous work, the guard is removed without seeing it and the data is parsed as the response to the new request. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

See more information about CVE-2026-105481 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	6.5
Vector String:	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Version:	3.1
Attack Vector:	Network
Attack Complexity:	High
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	Low
Integrity Impact:	High
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (nodejs)	ELSA-2026-92376	2026-10-30
Oracle Linux version 8 (nodejs-nodemon)	ELSA-2026-92376	2026-10-30
Oracle Linux version 8 (nodejs-packaging)	ELSA-2026-92376	2026-10-30
Oracle Linux version 9 (nodejs)	ELSA-2026-92378	2026-10-30
Oracle Linux version 9 (nodejs-nodemon)	ELSA-2026-92378	2026-10-30
Oracle Linux version 9 (nodejs-packaging)	ELSA-2026-92378	2026-10-30