CVE-2026-109461
Microsoft Authentication Library (MSAL) for Node.js Information Disclosure vulnerability
MSRC advisory October 15, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-109461
- CWE
- CWE-346
- Affected products
- Microsoft Authentication Library (MSAL) for Node.js Information Disclosure · Microsoft Microsoft Authentication Library (MSAL) for Node.js Information Disclosure · Microsoft
What happened
<p>Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network.</p>
What it means for your business
Microsoft Authentication Library (MSAL) for Node.js Information Disclosure vulnerability (CVE-2026-109461) was added to Microsoft’s security update guidance. <p>Origin validation error in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to disclose information over a network.</p> If you need help checking exposure, call (864) 335-9223.
CVSS score
5.9 (Medium)
EPSS probability
0.35%
Sources
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