CyberICT

CVE-2026-84003

Microsoft · Published September 8, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

Microsoft Authentication Library (MSAL) for Node.js Spoofing Vulnerability. Authentication bypass by capture-replay in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to perform spoofing over a network.

Affected Products

  • Microsoft Authentication Library (MSAL) for Node.js

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C