CVE-2026-109461
Received Received - Intake

Origin validation error in Microsoft Authentication Library for Node.js

Publication date: 2026-10-16

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description
Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network.

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Meta Information

Published
2026-10-16
Last Modified
2026-10-16
Generated
2026-10-16
AI Q&A
2026-10-16
EPSS Evaluated
N/A
NVD
CVE-2026-109461
EUVD
EUVD-2026-102952

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Microsoft Microsoft Identity Client for NodeJS 1.0.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-346 The product does not properly verify that the source of data or communication is valid.

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Executive Summary

Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network.

Impact Analysis

An attacker could exploit this to access sensitive information transmitted over the network, potentially leading to data breaches or unauthorized access to user accounts.

Compliance Impact

This vulnerability could lead to unauthorized information disclosure, which may violate GDPR (data protection) and HIPAA (health data privacy) requirements, potentially resulting in legal penalties or compliance violations.

Mitigation Strategies

Update to the latest version of Microsoft Authentication Library (MSAL) for Node.js to address the origin validation error.

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