Security Advisory

CVE-2024-27983

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2024-04-09 01:06:43

Last updated 2025-11-04 18:30:20

Assigner hackerone

CVSS score 8.2

State PUBLISHED

Description

An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.

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