CVE-2026-56850

CVE-2026-56850CVE-2026-56850

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 4.1 ()
VectorCVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
Last modified2026-07-30
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.