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ALPINE-CVE-2026-58044

ALPINE-CVE-2026-58044

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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**.

CVSS 3.7 · Low · Fix available

Published
Updated

Stack: system

Affected products and versions

  • nodejs Alpine:v3.21

    Affected ranges
    • ECOSYSTEM: < 22.23.2-r0

    Update to 22.23.2-r0

  • nodejs Alpine:v3.22

    Affected ranges
    • ECOSYSTEM: < 22.23.2-r0

    Update to 22.23.2-r0

  • nodejs Alpine:v3.23

    Affected ranges
    • ECOSYSTEM: < 24.18.1-r0

    Update to 24.18.1-r0

  • nodejs Alpine:v3.24

    Affected ranges
    • ECOSYSTEM: < 24.18.1-r0

    Update to 24.18.1-r0

Original sources

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