CVE-2026-56850EPSS p0.2%

CVE-2026-56850CVE-2026-56850

nodejs / node.js

Description

A flaw in Node.js HTTPS Agent connection reuse can cause PFX object-array key collisions, allowing mutual TLS (mTLS) client identities to be reused across requests configured with different client certificates. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

Scoring

CVSS 4.4 ()
VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
EPSS0.08% probability of exploitation · percentile 0.2% · 2026-10-05T12:00:23Z
Last modified2026-08-25
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.