CVE-2026-56846 Affecting nodejs:22/nodejs package, versions <1:22.23.2-1.module_el9.8.0+302+959ebcd4


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-ALMALINUX9-NODEJS-19496972
  • published2 Sept 2026
  • disclosed2 Sept 2026

Introduced: 2 Sep 2026

CVE-2026-56846  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 nodejs:22/nodejs to version 1:22.23.2-1.module_el9.8.0+302+959ebcd4 or higher.
This issue was patched in ALSA-2026:61383.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs:22/nodejs package and not the nodejs:22/nodejs package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 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