Unchecked Return Value

Overview Affected versions of this package are vulnerable to Unchecked Return Value due to improper access control in the diagnostics IPC. An attacker can gain elevated privileges by exploiting a missing error check that results in incorrect access control lists being applied to shared resources...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via HTTP/2 request processing. An attacker can cause a denial of service by sending crafted HTTP/2 traffic that triggers an out-of-memory condition, exhausting available memory and...

Access of Resource Using Incompatible Type ('Type Confusion')

Overview Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type 'Type Confusion' via X.509 certificate parsing in the .NET runtime cryptography layer CryptoNativeGetX509NameInfo. An attacker can cause denial of service by supplying a specially crafted X.509...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization via the SslStream implementation. An attacker can bypass authorization checks during TLS/SSL communication by exploiting flaws in the processing of secure connections. This may allow access to protected...

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 XML encryption processing. An attacker can cause denial of service by supplying a crafted XML document that triggers excessive resource consumption or causes the application to...

Microsoft Security Advisory CVE-2026-45591 – ASP.NET Core Denial of Service Vulnerability

Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core SignalR and Blazor Server. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A denial of service...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling. An attacker can exhaust system resources by sending specially crafted requests over the network, resulting in service unavailability for legitimate users. Remediation Upgrade...

Infinite loop

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 Infinite loop in the...

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...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read when decoding malformed Base64Url input. An attacker can cause a disruption of service. Remediation Upgrade Microsoft.NETCore.App.Runtime.linux-musl-arm64 to version 9.0.14, 10.0.4 or higher. References - GitHub Commi...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation ...

Integer Overflow or Wraparound

Overview Affected versions of this package are vulnerable to Integer Overflow or Wraparound due to improper handling of integer values in the msdia140.dll process. An attacker can execute arbitrary code by supplying specially crafted input that triggers an integer overflow and subsequent heap-bas...

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...

Buffer Over-read

Overview Affected versions of this package are vulnerable to Buffer Over-read through the loading of a specially crafted file. Remediation Upgrade Microsoft.NETCore.App.Runtime.linux-musl-arm64 to version 8.0.12, 9.0.1 or higher. References - GitHub Issue - GitHub Issue - Security Advisory...

Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow through the loading of a specially crafted file. Remediation Upgrade Microsoft.NETCore.App.Runtime.linux-musl-arm64 to version 8.0.12, 9.0.1 or higher. References - GitHub Issue...

Use After Free

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 Use After Free that could allow remote code...

Cleartext Transmission of Sensitive Information

Overview Affected versions of this package are vulnerable to Cleartext Transmission of Sensitive Information via the TlsStream process. An attacker can gain access to sensitive information by intercepting unencrypted data. Remediation Upgrade Microsoft.NETCore.App.Runtime.linux-musl-arm64 to...

Improper Input Validation

Overview Affected versions of this package are vulnerable to Improper Input Validation through the parsing of X.509 certificates. An attacker can cause excessive CPU consumption and disrupt service by submitting a specially crafted malicious certificate. Remediation Upgrade...

Race Condition

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 Race Condition through the...