{"id":"CVE-2026-48932","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-48932","generatedAt":"2026-10-28T00:52:36.027Z","title":"This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.","description":"A flaw in Node.js HTTP client can cause a request desynchronization for Node.js-based forwarding proxies that rebuild outbound headers from the visible `IncomingMessage` headers while piping the original body to a reused backend connection.\r\n\r\nNode.js can omit headers beyond `maxHeadersCount` / `maxHeaderPairs` from `req.headers`, `req.rawHeaders`, and `req.headersDistinct`, while still using those omitted headers internally for HTTP message framing. In particular, `Content-Length` can be hidden from userland while the request body is still delivered.\r\n\r\nThis vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.","published":"2026-09-01T03:16:49.000Z","lastModified":"2026-09-03T17:02:55.000Z","status":"Awaiting Analysis","sourceIdentifier":"support@hackerone.com","cvss":{"version":"3.0","score":3.7,"severity":"LOW","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"},"cwe":["CWE-444"],"affected":[],"epss":{"score":0.00271,"percentile":0.19116,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://hackerone.com/reports/3564941","source":"support@hackerone.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-48932","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}