BIT-node-2026-48932

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    BIT-node-2026-48932

    Published: 7 Sept 2026Last Modified: 7 Sept 2026

    Summary:

    Details: 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. Node.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. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.

    References: https://hackerone.com/reports/3564941, https://nvd.nist.gov/vuln/detail/CVE-2026-48932

    Affected packages

    Package

    Name: node

    Purl: pkg:bitnami/node

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -22.23.0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High