High severity7.5NVD Advisory· Published Jul 14, 2026· Updated Jul 22, 2026
CVE-2026-56170
CVE-2026-56170
Description
Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Microsoft.AspNetCore.App.Runtime.linux-armNuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.linux-arm64NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.linux-musl-armNuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.linux-musl-x64NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.linux-x64NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.osx-arm64NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.osx-x64NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.win-armNuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.win-arm64NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.win-x64NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.win-x86NuGet | >= 10.0.0, < 10.0.6 | 10.0.6 |
Microsoft.AspNetCore.App.Runtime.linux-armNuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.linux-arm64NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.linux-musl-armNuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.linux-musl-x64NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.linux-x64NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.osx-arm64NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.osx-x64NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.win-armNuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.win-arm64NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.win-x64NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.win-x86NuGet | >= 9.0.0, < 9.0.15 | 9.0.15 |
Microsoft.AspNetCore.App.Runtime.linux-armNuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.linux-arm64NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.linux-musl-armNuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.linux-musl-arm64NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.linux-musl-x64NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.linux-x64NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.osx-arm64NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.osx-x64NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.win-armNuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.win-arm64NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.win-x64NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Microsoft.AspNetCore.App.Runtime.win-x86NuGet | >= 8.0.0, < 8.0.26 | 8.0.26 |
Affected products
45- osv-coords43 versionspkg:bitnami/dotnetpkg:bitnami/dotnet-sdkpkg:rpm/almalinux/aspnetcore-runtime-10.0pkg:rpm/almalinux/aspnetcore-runtime-8.0pkg:rpm/almalinux/aspnetcore-runtime-9.0pkg:rpm/almalinux/aspnetcore-runtime-dbg-10.0pkg:rpm/almalinux/aspnetcore-runtime-dbg-8.0pkg:rpm/almalinux/aspnetcore-runtime-dbg-9.0pkg:rpm/almalinux/aspnetcore-targeting-pack-10.0pkg:rpm/almalinux/aspnetcore-targeting-pack-8.0pkg:rpm/almalinux/aspnetcore-targeting-pack-9.0pkg:rpm/almalinux/dotnetpkg:rpm/almalinux/dotnet-apphost-pack-10.0pkg:rpm/almalinux/dotnet-apphost-pack-8.0pkg:rpm/almalinux/dotnet-apphost-pack-9.0pkg:rpm/almalinux/dotnet-hostpkg:rpm/almalinux/dotnet-hostfxr-10.0pkg:rpm/almalinux/dotnet-hostfxr-8.0pkg:rpm/almalinux/dotnet-hostfxr-9.0pkg:rpm/almalinux/dotnet-runtime-10.0pkg:rpm/almalinux/dotnet-runtime-8.0pkg:rpm/almalinux/dotnet-runtime-9.0pkg:rpm/almalinux/dotnet-runtime-dbg-10.0pkg:rpm/almalinux/dotnet-runtime-dbg-8.0pkg:rpm/almalinux/dotnet-runtime-dbg-9.0pkg:rpm/almalinux/dotnet-sdk-10.0pkg:rpm/almalinux/dotnet-sdk-10.0-source-built-artifactspkg:rpm/almalinux/dotnet-sdk-8.0pkg:rpm/almalinux/dotnet-sdk-8.0-source-built-artifactspkg:rpm/almalinux/dotnet-sdk-9.0pkg:rpm/almalinux/dotnet-sdk-9.0-source-built-artifactspkg:rpm/almalinux/dotnet-sdk-aot-10.0pkg:rpm/almalinux/dotnet-sdk-aot-9.0pkg:rpm/almalinux/dotnet-sdk-dbg-10.0pkg:rpm/almalinux/dotnet-sdk-dbg-8.0pkg:rpm/almalinux/dotnet-sdk-dbg-9.0pkg:rpm/almalinux/dotnet-targeting-pack-10.0pkg:rpm/almalinux/dotnet-targeting-pack-8.0pkg:rpm/almalinux/dotnet-targeting-pack-9.0pkg:rpm/almalinux/dotnet-templates-10.0pkg:rpm/almalinux/dotnet-templates-8.0pkg:rpm/almalinux/dotnet-templates-9.0pkg:rpm/almalinux/netstandard-targeting-pack-2.1
>= 8.0.0, < 8.0.29+ 42 more
- (no CPE)range: >= 8.0.0, < 8.0.29
- (no CPE)range: >= 8.0.0, < 8.0.29
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 8.0.29-1.el10_2
- (no CPE)range: < 9.0.18-1.el10_2
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 8.0.29-1.el10_2
- (no CPE)range: < 9.0.18-1.el10_2
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 8.0.29-1.el10_2
- (no CPE)range: < 9.0.18-1.el10_2
- (no CPE)range: < 10.0.110-1.el8_10
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 8.0.29-1.el10_2
- (no CPE)range: < 9.0.18-1.el10_2
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 8.0.29-1.el10_2
- (no CPE)range: < 9.0.18-1.el10_2
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 8.0.29-1.el10_2
- (no CPE)range: < 9.0.18-1.el10_2
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 8.0.29-1.el10_2
- (no CPE)range: < 9.0.18-1.el10_2
- (no CPE)range: < 10.0.110-1.el10_2
- (no CPE)range: < 10.0.110-1.el10_2
- (no CPE)range: < 8.0.129-1.el10_2
- (no CPE)range: < 8.0.129-1.el10_2
- (no CPE)range: < 9.0.119-1.el10_2
- (no CPE)range: < 9.0.119-1.el10_2
- (no CPE)range: < 10.0.110-1.el10_2
- (no CPE)range: < 9.0.119-1.el10_2
- (no CPE)range: < 10.0.110-1.el10_2
- (no CPE)range: < 8.0.129-1.el10_2
- (no CPE)range: < 9.0.119-1.el10_2
- (no CPE)range: < 10.0.10-1.el10_2
- (no CPE)range: < 8.0.29-1.el10_2
- (no CPE)range: < 9.0.18-1.el10_2
- (no CPE)range: < 10.0.110-1.el10_2
- (no CPE)range: < 8.0.129-1.el10_2
- (no CPE)range: < 9.0.119-1.el10_2
- (no CPE)range: < 9.0.119-1.el10_2
Patches
Vulnerability mechanics
References
5- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56170nvdPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-j8gr-8fp3-5q5hghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-56170ghsaADVISORY
- github.com/dotnet/announcements/issues/424ghsaWEB
- github.com/dotnet/aspnetcore/security/advisories/GHSA-j8gr-8fp3-5q5hghsaWEB
News mentions
3- Patch Tuesday - July 2026Rapid7 Blog · Jul 14, 2026
- Microsoft July 2026 Patch Tuesday fixes massive 570 flaws, 3 zero-daysBleepingComputer · Jul 14, 2026
- Massive Microsoft Patch Tuesday Update: 570 Vulnerabilities Fixed, Including 3 Zero-DaysCyber Security News · Jul 14, 2026