Exploit for CVE-2025-55315

Overview A critical vulnerability in ASP.NET Core involving i...

dotnet: .NET Security Feature Bypass Vulnerability

A flaw was found in ASP.NET Core’s HTTP request handling that leads to inconsistent interpretation of specially crafted HTTP requests. This mismatch can be abused by an authorized network attacker to smuggle or manipulate request boundaries, allowing bypass of security controls or unintended...

dotnet: .NET Security Feature Bypass Vulnerability

A flaw was found in ASP.NET Core’s HTTP request handling that leads to inconsistent interpretation of specially crafted HTTP requests. This mismatch can be abused by an authorized network attacker to smuggle or manipulate request boundaries, allowing bypass of security controls or unintended...

dotnet: .NET Security Feature Bypass Vulnerability

A flaw was found in ASP.NET Core’s HTTP request handling that leads to inconsistent interpretation of specially crafted HTTP requests. This mismatch can be abused by an authorized network attacker to smuggle or manipulate request boundaries, allowing bypass of security controls or unintended...

dotnet: .NET Security Feature Bypass Vulnerability

A flaw was found in ASP.NET Core’s HTTP request handling that leads to inconsistent interpretation of specially crafted HTTP requests. This mismatch can be abused by an authorized network attacker to smuggle or manipulate request boundaries, allowing bypass of security controls or unintended...

CVE-2025-55315

A flaw was found in ASP.NET Core’s HTTP request handling that leads to inconsistent interpretation of specially crafted HTTP requests. This mismatch can be abused by an authorized network attacker to smuggle or manipulate request boundaries, allowing bypass of security controls or unintended...

netty-codec-http: Netty is vulnerable to request smuggling due to incorrect parsing of chunk extensions

A flaw in Netty’s HTTP/1.1 chunked encoding parser allows newline LF characters in chunk extensions to be incorrectly treated as the end of the chunk-size line instead of requiring the proper CRLF sequence. This discrepancy can be exploited in rare cases where a reverse proxy interprets the same...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of...

HTTP Request Smuggling

Overview Microsoft.AspNetCore.Server.Kestrel.Core is a core components of ASP.NET Core Kestrel cross-platform web server. Affected versions of this package are vulnerable to HTTP Request Smuggling via the interpretation of chunked HTTP requests. An attacker can bypass security restrictions and...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of chunke...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of...

GHSA-5RRX-JJJQ-Q2R5 Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability

Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core 10.0 , ASP.NET Core 9.0 , ASP.NET Core 8.0, and ASP.NET Core 2.3. This advisory also...

EUVD-2025-34426

Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of chunke...

Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability

Microsoft Security Advisory CVE-2025-55315: .NET Security Feature Bypass Vulnerability Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core 10.0 , ASP.NET Core 9.0 , ASP.NET Core 8.0, and ASP.NET Core 2.3. This advisory also...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of chunke...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of...

HTTP Request Smuggling

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 HTTP Request Smuggling via the interpretation of chunke...