CVE-2026-56846

—

CVSS 3.0

7.5 high

EPSS

<1%p41

Published

Aug 4, 2026 (Aug 4, 2026)

Modified

Sep 3, 2026

Description

A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemory and enable remote memory exhaustion. This vulnerability affects Node.js **24.x** and **22.x**.

Weakness: CWE-400
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (0.5%)

In the news0 stories

No ingested article mentions this CVE yet.