# Microsoft ASP.NET Core Hosting Bundle 9.0 security updates

The latest version of Microsoft ASP.NET Core Hosting Bundle 9.0 is 9.0.23, released October 23, 2026. Patch Radar has 2 security fixes for Microsoft ASP.NET Core Hosting Bundle 9.0, closing 26 CVEs. The newest security fix is Microsoft ASP.NET Core Hosting Bundle 9.0 9.0.21, released October 5, 2026. Version 9.0.23 adds no new CVE fixes and includes all of them. 2 CVEs have no fix yet.

- Web page: https://patchblox.com/security/product/windows-app/microsoft-asp.net-core-hosting-bundle-9.0
- Platform: Windows apps
- Vendor: Microsoft
- Latest version: 9.0.23 (Oct 23, 2026)
- Supported: yes

## CVEs with no fix yet

| CVE | Priority | Title | Status |
|---|---|---|---|
| [CVE-2026-96237](https://patchblox.com/security/data/cve/CVE-2026-96237.md) | High | .NET Remote Code Execution Vulnerability | no-fix |
| [CVE-2026-96238](https://patchblox.com/security/data/cve/CVE-2026-96238.md) | High | .NET Security Feature Bypass Vulnerability | no-fix |

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| Microsoft ASP.NET Core Hosting Bundle 9.0 9.0.23 (latest, includes every fix below) | Oct 23, 2026 | 9.0.23 |  |  |  |
| [Microsoft ASP.NET Core Hosting Bundle 9.0 9.0.21](https://patchblox.com/security/data/fix/windows-app/microsoft.dotnet.hostingbundle.9-9.0.21.md) | Oct 5, 2026 | 9.0.21 | Urgent | 22 | 0 |
| [Microsoft ASP.NET Core Hosting Bundle 9.0 9.0.20](https://patchblox.com/security/data/fix/windows-app/microsoft.dotnet.hostingbundle.9-9.0.20.md) | Aug 14, 2026 | 9.0.20 | High | 4 | 0 |

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Data as of 2026-11-11T19:49:26Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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