Auth bypass in Microsoft Microsoft.aspnetcore.http.connections
CVE-2026-114146
Incorrect authorization in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Microsoft Microsoft.aspnetcore.http.connections
- Microsoft Visual Studio 2022 Version 17.14
- Microsoft Visual Studio 2026 Version 18.11
- Microsoft Visual Studio 2026 Version 18.12
- Microsoft .Net 10.0 Installed On Linux
- Microsoft .Net 10.0 Installed On Mac OS
- Microsoft .Net 10.0 Installed On Windows
- Microsoft .Net 11.0 Installed On Linux
- Microsoft .Net 11.0 Installed On Mac OS
- Microsoft .Net 11.0 Installed On Windows
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-114146 (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-114146?
- CVE-2026-114146 is a critical-severity vulnerability in Microsoft Microsoft.aspnetcore.http.connections, classified under Incorrect Authorization. CVSS score: 9.0/10. Published 2026-11-10.
- How severe is CVE-2026-114146?
- Critical severity. CVSS v3 base score is 9.0 out of 10.