CVE-2025-59465 Denial of service in node

What is CVE-2025-59465?

CVE-2025-59465 is a high-severity denial of service vulnerability in Nodejs Node.js, published on 20 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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) }) }) ```

Weakness: CWE-248, CWE-400

Which versions are affected by CVE-2025-59465?

2 open source packages ship an affected version, including node and node-min. It affects 1 product.

Products include Nodejs Node.js.

How do I fix CVE-2025-59465?

Upgrade node to a fixed version for your release line: 20.20.0, 22.22.0, 24.13.0 or 25.3.0.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-59465 being exploited?

There is no known exploitation of CVE-2025-59465 in the wild and no public exploit code.

Other vulnerabilities in Nodejs Node.js

• CVE-2023-32002 Security feature bypass in Node Critical 9.8
• CVE-2016-6303 Integer overflow in n/a Critical 9.8
• CVE-2017-15896 Security feature bypass in Node.js Critical 9.1
• CVE-2018-7160 Server-side request forgery in Node.js High 8.8
• CVE-2018-12120 Misconfiguration in Node.js High 8.1

All Nodejs Node.js vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2025-59465, AZL-75077, BELL-CVE-2025-59465, BIT-node-2025-59465, BIT-node-min-2025-59465, CLEANSTART-2026-UP28744 and 10 more.