CVE-2026-56170
High
Description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Microsoft .net
PublishedJul 14, 2026
First seenJul 14, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- microsoft .net8.0.29, 9.0.18, 10.0.6 or later
- Microsoft.AspNetCore.App.Runtime.linux-arm10.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.linux-arm6410.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.linux-musl-arm10.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.linux-musl-arm6410.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.linux-musl-x6410.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.linux-x6410.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.osx-arm6410.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.osx-x6410.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.win-arm10.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.win-arm6410.0.6, 9.0.15, 8.0.26 or later
- Microsoft.AspNetCore.App.Runtime.win-x6410.0.6, 9.0.15, 8.0.26 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft .net | 8.0.0 ≤ v < 8.0.29, 9.0.0 ≤ v < 9.0.18, 10.0.0 ≤ v < 10.0.6 | 8.0.29, 9.0.18, 10.0.6 |
| Microsoft.AspNetCore.App.Runtime.linux-armNuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.linux-arm64NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.linux-musl-armNuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.linux-musl-arm64NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.linux-musl-x64NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.linux-x64NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.osx-arm64NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.osx-x64NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.win-armNuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.win-arm64NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.win-x64NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
| Microsoft.AspNetCore.App.Runtime.win-x86NuGet | 10.0.0 ≤ v < 10.0.6, 9.0.0 ≤ v < 9.0.15, 8.0.0 ≤ v < 8.0.26 | 10.0.6, 9.0.15, 8.0.26 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.