CVE-2026-56846 Affecting nodejs:22/npm package, versions <1:10.9.8-1.22.23.2.1.module_el8.10.0+4265+75d28086


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-ALMALINUX8-NODEJS-20302898
  • published30 Sept 2026
  • disclosed31 Aug 2026

Introduced: 31 Aug 2026

CVE-2026-56846  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 nodejs:22/npm to version 1:10.9.8-1.22.23.2.1.module_el8.10.0+4265+75d28086 or higher.
This issue was patched in ALSA-2026:62219.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs:22/npm package and not the nodejs:22/npm package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1