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high7.5

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`.

Impact

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) }) }) ```

Affected products

VendorProductAffected versions
NodejsNode.Js
from 20.0.0 before 20.20.0
from 22.0.0 before 22.22.0
from 24.0.0 before 24.13.0
from 25.0.0 before 25.3.0

Weakness classification

CWE-400CWE-248

References