CVE-2026-114150: ASP.NET Core Information Disclosure Vulnerability
Published Nov 10, 2026
·Updated
ASP.NET Core Information Disclosure Vulnerability
Other sources
Use of uninitialized resource in ASP.NET Core allows an unauthorized attacker to disclose information over a network.
— Microsoft
Affected Software
7 affected componentsFixes available
All of the following
Microsoft .NET>=11.0<11.0.0
11.0.0
Apple macOS*
Microsoft Visual Studio 2026>=18.12<18.12.0
18.12.0
All of the following
Microsoft .NET>=11.0<11.0.0
11.0.0
Linux Linux*
All of the following
Microsoft .NET>=11.0<11.0.0
11.0.0
Microsoft Windows*
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 11.0.0 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 18.12.0
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·06:19 PM
Data Sourced
via MITRE·06:19 PM
DescriptionSeverity
Data Sourced
via NVD·07:19 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What access and conditions are required for exploitation?
The attacker must be able to reach the affected service over a network. No privileges or user interaction are required, but the attack complexity is rated high.
2
What is the expected security impact?
The vulnerability is rated for high confidentiality impact, meaning information may be disclosed. It has no indicated integrity or availability impact.