CVE-2026-108469: Microsoft Authentication Library for JavaScript Spoofing Vulnerability
Published Nov 10, 2026
·Updated
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Authentication Library for JavaScript allows an unauthorized attacker to perform spoofing over a network.
Other sources
Microsoft Authentication Library for JavaScript Spoofing Vulnerability
— Microsoft
Affected Software
1 affected componentFixes available
Microsoft Authentication Library for JavaScript<5.21.0
5.21.0
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 5.21.0
Event History
Nov 10, 2026
CVE Published
via Microsoft·04:00 PM
Data Sourced
via Microsoft·04:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·04:00 PM
Affected Software
CVE Published
via MITRE·06:20 PM
Data Sourced
via MITRE·06:20 PM
DescriptionSeverity
Data Sourced
via NVD·07:18 PM
DescriptionSeverityWeakness