Vulnerability · Published Oct 13, 2026 · Assigned by microsoft

CVE-2026-70183ASP.NET Core Elevation of Privilege Vulnerability

High 7.5

In plain English

A high-severity race condition in ASP.NET Core 10.0 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 54.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Concurrent execution using shared resource with improper synchronization ('race condition') in ASP.NET Core allows an authorized attacker to elevate privileges over a network.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10aspnetcore-runtime-10.010.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:8aspnetcore-runtime-10.010.0.13-1.el8_10ALSA-2026:86192
AlmaLinux:9aspnetcore-runtime-10.010.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10aspnetcore-runtime-8.08.0.32-1.el10_2ALSA-2026:86168
AlmaLinux:8aspnetcore-runtime-8.08.0.32-2.el8_10ALSA-2026:86594
AlmaLinux:9aspnetcore-runtime-8.08.0.32-1.el9_8ALSA-2026:86169
AlmaLinux:10aspnetcore-runtime-9.09.0.21-1.el10_2ALSA-2026:86172
AlmaLinux:8aspnetcore-runtime-9.09.0.21-1.el8_10ALSA-2026:86170
AlmaLinux:9aspnetcore-runtime-9.09.0.21-1.el9_8ALSA-2026:86171
AlmaLinux:10aspnetcore-runtime-dbg-10.010.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:8aspnetcore-runtime-dbg-10.010.0.13-1.el8_10ALSA-2026:86192
AlmaLinux:9aspnetcore-runtime-dbg-10.010.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10aspnetcore-runtime-dbg-8.08.0.32-1.el10_2ALSA-2026:86168
AlmaLinux:8aspnetcore-runtime-dbg-8.08.0.32-2.el8_10ALSA-2026:86594
AlmaLinux:9aspnetcore-runtime-dbg-8.08.0.32-1.el9_8ALSA-2026:86169
AlmaLinux:10aspnetcore-runtime-dbg-9.09.0.21-1.el10_2ALSA-2026:86172
AlmaLinux:8aspnetcore-runtime-dbg-9.09.0.21-1.el8_10ALSA-2026:86170
AlmaLinux:9aspnetcore-runtime-dbg-9.09.0.21-1.el9_8ALSA-2026:86171
AlmaLinux:10aspnetcore-targeting-pack-10.010.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:8aspnetcore-targeting-pack-10.010.0.13-1.el8_10ALSA-2026:86192
AlmaLinux:9aspnetcore-targeting-pack-10.010.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10aspnetcore-targeting-pack-8.08.0.32-1.el10_2ALSA-2026:86168
AlmaLinux:8aspnetcore-targeting-pack-8.08.0.32-2.el8_10ALSA-2026:86594
AlmaLinux:9aspnetcore-targeting-pack-8.08.0.32-1.el9_8ALSA-2026:86169
AlmaLinux:10aspnetcore-targeting-pack-9.09.0.21-1.el10_2ALSA-2026:86172
AlmaLinux:8aspnetcore-targeting-pack-9.09.0.21-1.el8_10ALSA-2026:86170
AlmaLinux:9aspnetcore-targeting-pack-9.09.0.21-1.el9_8ALSA-2026:86171
AlmaLinux:8dotnet10.0.113-1.el8_10ALSA-2026:86192
AlmaLinux:10dotnet-apphost-pack-10.010.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-apphost-pack-10.010.0.13-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-apphost-pack-10.010.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-apphost-pack-8.08.0.32-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-apphost-pack-8.08.0.32-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-apphost-pack-8.08.0.32-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-apphost-pack-9.09.0.21-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-apphost-pack-9.09.0.21-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-apphost-pack-9.09.0.21-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-host10.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:9dotnet-host10.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-hostfxr-10.010.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-hostfxr-10.010.0.13-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-hostfxr-10.010.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-hostfxr-8.08.0.32-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-hostfxr-8.08.0.32-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-hostfxr-8.08.0.32-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-hostfxr-9.09.0.21-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-hostfxr-9.09.0.21-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-hostfxr-9.09.0.21-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-runtime-10.010.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-runtime-10.010.0.13-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-runtime-10.010.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-runtime-8.08.0.32-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-runtime-8.08.0.32-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-runtime-8.08.0.32-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-runtime-9.09.0.21-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-runtime-9.09.0.21-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-runtime-9.09.0.21-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-runtime-dbg-10.010.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-runtime-dbg-10.010.0.13-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-runtime-dbg-10.010.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-runtime-dbg-8.08.0.32-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-runtime-dbg-8.08.0.32-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-runtime-dbg-8.08.0.32-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-runtime-dbg-9.09.0.21-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-runtime-dbg-9.09.0.21-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-runtime-dbg-9.09.0.21-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-sdk-10.010.0.113-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-sdk-10.010.0.113-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-sdk-10.010.0.113-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-sdk-10.0-source-built-artifacts10.0.113-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-sdk-10.0-source-built-artifacts10.0.113-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-sdk-10.0-source-built-artifacts10.0.113-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-sdk-8.08.0.132-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-sdk-8.08.0.132-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-sdk-8.08.0.132-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-sdk-8.0-source-built-artifacts8.0.132-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-sdk-8.0-source-built-artifacts8.0.132-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-sdk-8.0-source-built-artifacts8.0.132-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-sdk-9.09.0.122-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-sdk-9.09.0.122-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-sdk-9.09.0.122-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-sdk-9.0-source-built-artifacts9.0.122-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-sdk-9.0-source-built-artifacts9.0.122-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-sdk-9.0-source-built-artifacts9.0.122-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-sdk-aot-10.010.0.113-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-sdk-aot-10.010.0.113-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-sdk-aot-10.010.0.113-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-sdk-aot-9.09.0.122-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-sdk-aot-9.09.0.122-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-sdk-aot-9.09.0.122-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-sdk-dbg-10.010.0.113-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-sdk-dbg-10.010.0.113-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-sdk-dbg-10.010.0.113-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-sdk-dbg-8.08.0.132-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-sdk-dbg-8.08.0.132-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-sdk-dbg-8.08.0.132-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-sdk-dbg-9.09.0.122-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-sdk-dbg-9.09.0.122-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-sdk-dbg-9.09.0.122-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-targeting-pack-10.010.0.13-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-targeting-pack-10.010.0.13-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-targeting-pack-10.010.0.13-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-targeting-pack-8.08.0.32-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-targeting-pack-8.08.0.32-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-targeting-pack-8.08.0.32-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-targeting-pack-9.09.0.21-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-targeting-pack-9.09.0.21-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-targeting-pack-9.09.0.21-1.el9_8ALSA-2026:86171
AlmaLinux:10dotnet-templates-10.010.0.113-1.el10_2ALSA-2026:86195
AlmaLinux:8dotnet-templates-10.010.0.113-1.el8_10ALSA-2026:86192
AlmaLinux:9dotnet-templates-10.010.0.113-1.el9_8ALSA-2026:86193
AlmaLinux:10dotnet-templates-8.08.0.132-1.el10_2ALSA-2026:86168
AlmaLinux:8dotnet-templates-8.08.0.132-2.el8_10ALSA-2026:86594
AlmaLinux:9dotnet-templates-8.08.0.132-1.el9_8ALSA-2026:86169
AlmaLinux:10dotnet-templates-9.09.0.122-1.el10_2ALSA-2026:86172
AlmaLinux:8dotnet-templates-9.09.0.122-1.el8_10ALSA-2026:86170
AlmaLinux:9dotnet-templates-9.09.0.122-1.el9_8ALSA-2026:86171
AlmaLinux:10netstandard-targeting-pack-2.19.0.122-1.el10_2ALSA-2026:86172
AlmaLinux:8netstandard-targeting-pack-2.19.0.122-1.el8_10ALSA-2026:86170
AlmaLinux:9netstandard-targeting-pack-2.19.0.122-1.el9_8ALSA-2026:86171
Alpine:v3.23dotnet10-runtime10.0.13-r0ALPINE-CVE-2026-70183
Alpine:v3.24dotnet10-runtime10.0.13-r0ALPINE-CVE-2026-70183
Alpine:v3.22dotnet8-runtime8.0.32-r0ALPINE-CVE-2026-70183
Alpine:v3.23dotnet8-runtime8.0.32-r0ALPINE-CVE-2026-70183
Alpine:v3.24dotnet8-runtime8.0.32-r0ALPINE-CVE-2026-70183
Alpine:v3.22dotnet9-runtime9.0.21-r0ALPINE-CVE-2026-70183
Alpine:v3.23dotnet9-runtime9.0.21-r0ALPINE-CVE-2026-70183
Alpine:v3.24dotnet9-runtime9.0.21-r0ALPINE-CVE-2026-70183
NuGetmicrosoft.aspnetcore.app.runtime.linux-arm8.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-arm10.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-arm9.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-arm11.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-arm649.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-arm6411.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-arm648.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-arm6410.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-arm9.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-arm10.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-arm8.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-arm11.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-arm648.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-arm649.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-arm6410.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-arm6411.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-x648.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-x6411.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-x649.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-musl-x6410.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-x6410.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-x649.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-x6411.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.linux-x648.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.osx-arm649.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.osx-arm6410.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.osx-arm6411.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.osx-arm648.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.osx-x649.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.osx-x648.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.osx-x6410.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.osx-x6411.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-arm9.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-arm10.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-arm11.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-arm8.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-arm648.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-arm6411.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-arm6410.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-arm649.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-x649.0.21GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-x6410.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-x6411.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-x648.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-x8610.0.13GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-x868.0.32GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-x8611.0.0-rc.2GHSA-494h-xx7x-5frh
NuGetmicrosoft.aspnetcore.app.runtime.win-x869.0.21GHSA-494h-xx7x-5frh
Rocky Linux:10dotnet10.00:10.0.113-1.el10_2RLSA-2026:86195
Rocky Linux:8dotnet10.00:10.0.113-1.el8_10RLSA-2026:86192
Rocky Linux:9dotnet10.00:10.0.113-1.el9_8RLSA-2026:86193
Rocky Linux:10dotnet8.00:8.0.132-1.el10_2RLSA-2026:86168
Rocky Linux:8dotnet8.00:8.0.132-2.el8_10RLSA-2026:86594
Rocky Linux:9dotnet8.00:8.0.132-1.el9_8RLSA-2026:86169
Rocky Linux:10dotnet9.00:9.0.122-1.el10_2RLSA-2026:86172
Rocky Linux:8dotnet9.00:9.0.122-1.el8_10RLSA-2026:86170
Rocky Linux:9dotnet9.00:9.0.122-1.el9_8RLSA-2026:86171
Ubuntu:24.04:LTSdotnet1010.0.113-10.0.13-0ubuntu1~24.04.1UBUNTU-CVE-2026-70183
Ubuntu:24.04:LTSdotnet1010.0.113-10.0.13-0ubuntu1~24.04.1USN-8942-1
Ubuntu:26.04:LTSdotnet1010.0.113-10.0.13-0ubuntu1~26.04.1USN-8942-1
Ubuntu:26.04:LTSdotnet1010.0.113-10.0.13-0ubuntu1~26.04.1UBUNTU-CVE-2026-70183
Ubuntu:26.10dotnet1010.0.113-10.0.13-0ubuntu1~26.10.1USN-8942-1
Ubuntu:26.10dotnet1010.0.113-10.0.13-0ubuntu1~26.10.1UBUNTU-CVE-2026-70183
Ubuntu:26.10dotnet1111.0.100-11.0.0~rc2-0ubuntu1~26.10.1USN-8942-1
Ubuntu:26.10dotnet1111.0.100-11.0.0~rc2-0ubuntu1~26.10.1UBUNTU-CVE-2026-70183
Ubuntu:22.04:LTSdotnet6no fix listedUBUNTU-CVE-2026-70183
Ubuntu:22.04:LTSdotnet7no fix listedUBUNTU-CVE-2026-70183
Ubuntu:22.04:LTSdotnet88.0.132-8.0.32-0ubuntu1~22.04.1UBUNTU-CVE-2026-70183
Ubuntu:22.04:LTSdotnet88.0.132-8.0.32-0ubuntu1~22.04.1USN-8942-1
Ubuntu:24.04:LTSdotnet88.0.132-8.0.32-0ubuntu1~24.04.1UBUNTU-CVE-2026-70183
Ubuntu:24.04:LTSdotnet88.0.132-8.0.32-0ubuntu1~24.04.1USN-8942-1

Affected products (as reported)

VendorProductVersions
Microsoft ASP.NET Core 10.0 10.0 – before 10.0.13
Microsoft ASP.NET Core 11.0 11.0 – before 11.0.0-rc.2
Microsoft ASP.NET Core 8.0 8.0 – before 8.0.32
Microsoft ASP.NET Core 9.0 9.0 – before 9.0.21
Microsoft Microsoft Visual Studio 2022 version 17.14 17.14.0 – before 17.14.42
Microsoft Microsoft Visual Studio 2026 version 18.10 18.10.0 – before 18.10.4

Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

References