Advisoriesby IbisMicrosoftCVE-2026-84003
Microsoft Authentication Library: authentication bypass
Fix: upgrade to 5.6.0 or later
Authentication bypass by capture-replay in Microsoft Authentication Library (MSAL) for Node.js allows an unauthorized attacker to perform spoofing over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft Authentication Library Product | >= 1.0.0, < 5.6.0 | 5.6.0 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-294