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CVE-2026-56846

7.5 high exploit ×2 SSVC exploitation: none Awaiting Analysis
NVD · CVE.org

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**.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Public exploits 2

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Change history 1

  1. First seenCVSS 7.5NVD modified 2026-10-23 23:10

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1