Race condition in Node.js - CVE-2026-105481

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Main Vulnerability Database Vulnerabilities #VU157672

Race condition in Node.js - CVE-2026-105481

Published: October 26, 2026


Vulnerability identifier: #VU157672
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-105481
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause an HTTP client to accept an unsolicited response as the response to a subsequent request.

The vulnerability exists due to a timing-dependent gap in unexpected-data checks in Node.js HTTP Agent connection reuse when an idle keep-alive socket is assigned to a new request before pending data has been read. A remote attacker can send an unsolicited response over the idle connection before the next request is sent to have that response parsed as valid data for the new request.


Affected software

Node.js
Anolis OS
nodejs-npm
v8-13.6-devel
nodejs
nodejs-devel
nodejs-full-i18n
nodejs-libs
nodejs-docs

How to mitigate CVE-2026-105481

Install security update from vendor's website.

Node.js - addressed in versions 22.23.4, 24.22.1, 26.12.1
nodejs-npm - update to 11.19.1-1.24.22.1.1
v8-13.6-devel - update to 13.6.233.17-1.24.22.1.1
nodejs - update to 24.22.1-1
nodejs-devel - update to 24.22.1-1
nodejs-full-i18n - update to 24.22.1-1
nodejs-libs - update to 24.22.1-1
nodejs-docs - update to 24.22.1-1

External References

Related Security Bulletins