Description
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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft Authentication Library | 1.0.0 – < 5.6.0 | 5.6.0 |
Advisories 3
- WID-SEC-2026-4410 IBM App Connect Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- WID-SEC-2026-3265 Microsoft Azure, Entra und Azure CLI : Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 8, 2026
- MSRC-CVE-2026-84003 Microsoft Authentication Library (MSAL) for Node.js Spoofing Vulnerability Microsoft Security Response Center · Sep 8, 2026
References
- Microsoft Authentication Library (MSAL) for Node.js Spoofing Vulnerability vendor-advisory patch