CVE-2024-27983

HighCVSS 8.2/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 8.2/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Weakness enumeration

CWE-362

Affected software

No affected versions have been published.

Timeline

Published
Apr 9, 2024
Last modified
Jun 17, 2026
NVD status
Deferred

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CVE-2024-27983: High severity, CVSS 8.2 | Vulnix