Vulnerability in Nodejs Node
CVE-2026-48931
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*…
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
EPSS: 0.003 (27.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Nodejs Node — versions 22.22.3, 24.16.0, 26.3.0
- Nodejs Node.js — versions 22.22.3, 24.16.0, 26.3.0
Weakness classification (CWE)
References
- support@hackerone.com (Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Exploit, Third Party Advisory, Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2026-48931?
- CVE-2026-48931 is a low-severity vulnerability in Nodejs Node, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 3.7/10. Published 2026-06-22.
- How severe is CVE-2026-48931?
- Low severity. CVSS v3 base score is 3.7 out of 10.