CVE-2026-56846 Affecting npm package, versions <1:11.17.0-1.24.19.0.1.module+el8.10.0+91018+78697c42


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.52% (42nd percentile)

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  • Snyk IDSNYK-ORACLE8-NPM-19514780
  • published3 Sept 2026
  • disclosed4 Aug 2026

Introduced: 4 Aug 2026

CVE-2026-56846  (opens in a new tab)

How to fix?

Upgrade Oracle:8 npm to version 1:11.17.0-1.24.19.0.1.module+el8.10.0+91018+78697c42 or higher.
This issue was patched in ELSA-2026-62583-0.

NVD Description

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