Issued at: 2026-04-18
Updated at: 2026-04-18
Synopsis
Important: .NET 10.0 security update
Description
.NET is a managed-software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation.
New versions of .NET that address a security vulnerability are now available. The updated versions are .NET SDK 10.0.106 and .NET Runtime 10.0.6.Security Fix(es):
* dotnet: .NET: Security Bypass and Denial of Service Vulnerability (CVE-2026-26171)
* dotnet: .NET: Denial of Service via stack overflow (CVE-2026-32203)
* dotnet: .NET: Denial of Service via Infinite Recursion in XmlDecryptionTransform (CVE-2026-33116)
* dotnet: Dotnet: SMTP Command Injection and Header Injection via MailAddress parsing flaw (CVE-2026-32178)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.