2026-05-20 dotnetdotnet-10nuget NuGet Package Pruning Is On by Default in .NET 10 NuGet Package Pruning shipped on-by-default for net10.0 projects, cutting transitive vulnerability reports by 70% and restore times by up to 50%.
2026-05-02 dotnetmcpai-agents Agent Governance Toolkit puts a YAML policy in front of every MCP tool call from .NET Microsoft's new Microsoft.AgentGovernance package wraps MCP tool calls with a policy kernel, a security scanner, and a response sanitizer. Here is what each piece does and how the wiring looks in C#.
2026-04-25 aspireopentelemetrysecurity Aspire 13.2.4 Patches CVE-2026-40894: Baggage Header DoS in OpenTelemetry .NET Aspire 13.2.4 ships an OpenTelemetry bump for CVE-2026-40894, a Gen0 allocation amplification in baggage, B3, and Jaeger propagator parsing. Update OpenTelemetry.Api and OpenTelemetry.Extensions.Propagators to 1.15.3 even if you are not on Aspire.
2026-04-21 dotnetaspnetcoresecurity .NET 10.0.7 Ships Out-of-Band to Fix CVE-2026-40372 in ASP.NET Core Data Protection A HMAC validation flaw in Microsoft.AspNetCore.DataProtection 10.0.0 through 10.0.6 lets attackers forge ciphertexts. .NET 10.0.7 is the mandatory fix.
2026-02-08 dotnet-10cryptographysecurity .NET 10 Post-Quantum Cryptography: ML-KEM, ML-DSA, and SLH-DSA .NET 10 adds native support for post-quantum cryptography algorithms ML-KEM, ML-DSA, and SLH-DSA, preparing your applications for a quantum-resistant future.