CVE-2026-56848 Affecting nodejs package, versions <20.19.2+dfsg-1+deb13u3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.49% (40th percentile)

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  • Snyk IDSNYK-ECHOLATEST-NODEJS-18427107
  • published30 Jul 2026
  • disclosed4 Aug 2026

Introduced: 30 Jul 2026

CVE-2026-56848  (opens in a new tab)

How to fix?

Upgrade Echo:latest nodejs to version 20.19.2+dfsg-1+deb13u3 or higher.

NVD Description

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

A flaw in Node.js HTTP/2 handling allows nghttp2_session_mem_send() to be called re-entrantly while nghttp2_session_mem_recv() is executing, resulting in a heap-use-after-free.

This vulnerability affects Node.js 26.x, 24.x, and 22.x.

CVSS Base Scores

version 3.1