Microsoft Security Advisory CVE-2026-70181 - ASP.NET Core Denial of Service Vulnerability

Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.WebUtilities. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. FileBufferingReadStream...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.win-arm64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the FileBufferingReadStream process. An attacker can cause memory exhaustion and disrupt service availability by sending specially crafted multipart requests that trigger excessiv...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.linux-x64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.linux-arm is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.linux-arm64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttlin...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.osx-x64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling vi...

GHSA-W5QQ-QRPP-RF4C Microsoft Security Advisory CVE-2026-70181 - ASP.NET Core Denial of Service Vulnerability

Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in Microsoft.AspNetCore.WebUtilities. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. FileBufferingReadStream...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.linux-musl-arm is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.win-arm is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling vi...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.win-x64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling vi...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.win-x86 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling vi...

Allocation of Resources Without Limits or Throttling

Overview Microsoft.AspNetCore.App.Runtime.linux-musl-x64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments. Affected versions of this package are vulnerable to Allocation of Resources Without Limits or...