This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-56846 →

DEBIAN-CVE-2026-56846

A flaw in Node.js HTTP/2 handling can cause HTTP/2 retained header blocks evade maxSessionMemory and enable remote memory exhaustion. This vulnerab...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 nodejs

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.20.4+dfsg-1~deb12u3"}]}]

Debian:13 nodejs

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20.19.2+dfsg-1+deb13u3"}]}]

Debian:14 nodejs

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"24.19.0+dfsg+~cs24.13.3-1"}]}]

References

advisory security-tracker.debian.org