CVE-2026-56846 Affecting nodejs20 package, versions <20.20.2-150600.3.21.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-SLES156-NODEJS20-19680837
  • published11 Sept 2026
  • disclosed3 Sept 2026

Introduced: 3 Sep 2026

CVE-2026-56846  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 nodejs20 to version 20.20.2-150600.3.21.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nodejs20 package and not the nodejs20 package as distributed by SLES. See How to fix? for SLES:15.6 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