CVE-2025-59465

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) }) }) ```

The following products are affected by CVE-2025-59465 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-59465.

URL	Resource
https://nodejs.org/en/blog/vulnerability/december-2025-security-releases
https://nvd.nist.gov/vuln/detail/CVE-2025-59465
https://www.cve.org/CVERecord?id=CVE-2025-59465