CVE-2026-48931
Low · CVSS 3.7 (CVSS 3.1)EPSS n/aPublished Updated Assigner: hackerone
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**.
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N · CWE-367
Status incidents that name it
- · Major · names this CVE
“…by a known bug in Node.js v24.17.0 (https://github.com/nodejs/node/issues/63989). The v24.17.0 security release (CVE-2026-48931) changed `http.Agent` keep-alive socket handling so that `node-fetch` throws `ERR_STREAM_PREMATURE_CLOSE` ("Premature…”
Affected vendors and products
nodejs: node
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- nodejs.org/en/blog/vulnerability/june-2026-security-releases (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)