CVE-2026-105481: nodejs node

Vulnerability summary

CVE-2026-105481 is a medium (CVSS 6.5) vulnerability in nodejs node. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 23.3% of scored vulnerabilities.

Timeline

1. 23-10-2026
   PublishedVulnerability first disclosed.

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**.

• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionThe 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.