CVE-2025-59465 in Node.js 22.16.0

A malformed `HTTP/2 HEADERS` frame with oversized, invalid `HPACK` data can cause Node.js to crash by triggering an unhandled `TLSSocket` error `ECONNRESET`. Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example: ``` server.on('secureConnection', socket => { socket.on('error', err => { console.log(err) }) }) ```

Severity

High 7.5

Exploitation

4% chance of exploit
in the next 30 days

Fix

Update to 22.22.0, 24.13.0, 25.3.0

Where

App / API

How it matched

Exact version match

First seen

2026-11-05 01:13:58 UTC

Source

https://nvd.nist.gov/vuln/detail/CVE-2025-59465