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VULNERABILITIES

CVE-2026-84003 Details

Description

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

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.4 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-84003 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-294Authentication Bypass by Capture-replay[email protected]

Affected Products

ProductVersions
microsoft azure/msal-node
< 5.6.0

CPE

  • cpe:2.3:a:microsoft:azure/msal-node:*:*:*:*:*:node.js:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-84003
NVD Published Date:
Sep 8, 2026
NVD Last Modified:
Sep 16, 2026
Source:
[email protected]
CVE-2026-84003 Details - Not Deferred