Nov 2026: ASP.NET Core Denial of Service Vulnerability
CVE-2026-109478 Published on November 10, 2026

ASP.NET Core Denial of Service Vulnerability
Inefficient algorithmic complexity in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Vendor Advisory NVD

Vulnerability Analysis

Exploitation:
NONE
Automatable:
YES
Technical Impact:
PARTIAL

Weakness Type

Inefficient Algorithmic Complexity

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.


Products Associated with CVE-2026-109478

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Affected Versions

Microsoft .NET 8.0 installed on Linux: Microsoft .NET 8.0 installed on Mac OS: Microsoft .NET 8.0 installed on Windows: Microsoft Visual Studio 2022 version 17.14: Microsoft Visual Studio 2026 version 18.11: Microsoft Visual Studio 2026 version 18.12: