CVSS 3.1
9.0 criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:HCritical (9.0) in microsoft. EPSS 0.8% estimated probability of exploitation activity in the next 30 days. Fixed in Microsoft.AspNetCore.Http.Connections 1.2.14.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:HExplain CVE-2026-114146 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-114146?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-114146?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-114146 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Microsoft .NET 10.0 installed on Linux | from 10.0.0 before 10.0.15 |
| Microsoft .NET 10.0 installed on Mac OS | from 10.0.0 before 10.0.15 |
| Microsoft .NET 10.0 installed on Windows | from 10.0.0 before 10.0.15 |
| Microsoft .NET 11.0 installed on Linux | from 11.0.0-preview.1 before 11.0.0 |
| Microsoft .NET 11.0 installed on Mac OS | from 11.0.0-preview.1 before 11.0.0 |
| Microsoft .NET 11.0 installed on Windows | from 11.0.0-preview.1 before 11.0.0 |
| Microsoft .NET 8.0 installed on Linux | from 8.0.0 before 8.0.34 |
| Microsoft .NET 8.0 installed on Mac OS | from 8.0.0 before 8.0.34 |
| Microsoft .NET 8.0 installed on Windows | from 8.0.0 before 8.0.34 |
| Microsoft .NET 9.0 installed on Linux | from 9.0.0 before 9.0.23 |
| Microsoft .NET 9.0 installed on Mac OS | from 9.0.0 before 9.0.23 |
| Microsoft .NET 9.0 installed on Windows | from 9.0.0 before 9.0.23 |
| Microsoft Visual Studio 2022 version 17.14 | from 17.14.0 before 17.14.45 |
| Microsoft Visual Studio 2026 version 18.11 | from 18.11.0 before 18.11.4 |
| Microsoft Visual Studio 2026 version 18.12 | from 18.12.0 before 18.12.0 |
| Microsoft.AspNetCore.Http.Connections | from 1.2.0 before 1.2.14 |
Microsoft.AspNetCore.Http.Connections (NuGet): fixed in 1.2.14Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.Http.Connections | >=1.2.0 <1.2.14 | 1.2.14 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-arm | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-arm64 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-arm | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-x64 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-x64 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.osx-arm64 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.osx-x64 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-arm64 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-x64 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-x86 | >=8.0.0-preview.1.23112.2 <8.0.34 | 8.0.34 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-arm | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-arm64 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-arm | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-x64 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-x64 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.osx-arm64 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.osx-x64 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-arm64 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-x64 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-x86 | >=9.0.0-preview.1.24081.5 <9.0.23 | 9.0.23 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-arm | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-arm64 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-arm | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-x64 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-x64 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.osx-arm64 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.osx-x64 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-arm64 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-x64 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-x86 | >=10.0.0-preview.1.25120.3 <10.0.15 | 10.0.15 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-arm | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-arm64 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-arm | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-musl-x64 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.linux-x64 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.osx-arm64 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.osx-x64 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-arm64 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-x64 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| GHSA-67wp-ghc2-fw2g | NuGet | Microsoft.AspNetCore.App.Runtime.win-x86 | >=11.0.0-preview.1.26104.118 <11.0.0 | 11.0.0 |
| Distribution | Release | Package | Fixed in | Advisory |
|---|---|---|---|---|
| Ubuntu | 22.04:LTS | dotnet6, dotnet7 | no fix listed | UBUNTU-CVE-2026-114146 |
| Ubuntu | 22.04:LTS | dotnet8 | 8.0.134-8.0.34-0ubuntu1~22.04.1 | UBUNTU-CVE-2026-114146 USN-9042-1 |
| Ubuntu | 24.04:LTS | dotnet10 | 10.0.115-10.0.15-0ubuntu1~24.04.1 | UBUNTU-CVE-2026-114146 USN-9042-1 |
| Ubuntu | 24.04:LTS | dotnet8 | 8.0.134-8.0.34-0ubuntu1~24.04.1 | UBUNTU-CVE-2026-114146 USN-9042-1 |
| Ubuntu | 26.04:LTS | dotnet10 | 10.0.115-10.0.15-0ubuntu1~26.04.1 | UBUNTU-CVE-2026-114146 USN-9042-1 |
| Ubuntu | 26.10 | dotnet10 | 10.0.115-10.0.15-0ubuntu1~26.10.1 | UBUNTU-CVE-2026-114146 USN-9042-1 |
| Ubuntu | 26.10 | dotnet11 | 11.0.100-11.0.0-0ubuntu1~26.10.1 | UBUNTU-CVE-2026-114146 USN-9042-1 |
| Red Hat | enterprise_linux:8::appstream | dotnet-hostfxr-10.0, dotnet-runtime-10.0, aspnetcore-runtime-10.0 and 8 more | 0:10.0.15-1.el8_10 | RHSA-2026:99053 |
| Red Hat | enterprise_linux:8::appstream | dotnet-hostfxr-8.0, dotnet-runtime-8.0, aspnetcore-runtime-8.0 and 8 more | 0:8.0.34-1.el8_10 | RHSA-2026:99052 |
| Red Hat | enterprise_linux:8::appstream | dotnet-hostfxr-9.0, dotnet-runtime-9.0, aspnetcore-runtime-9.0 and 8 more | 0:9.0.23-1.el8_10 | RHSA-2026:99051 |
| Red Hat | enterprise_linux:8::appstream | dotnet10.0, dotnet-sdk-10.0, dotnet-sdk-aot-10.0 and 6 more | 0:10.0.115-1.el8_10 | RHSA-2026:99053 |
| Red Hat | enterprise_linux:8::appstream | dotnet8.0, dotnet-sdk-8.0, dotnet-sdk-dbg-8.0 and 4 more | 0:8.0.134-1.el8_10 | RHSA-2026:99052 |
| Red Hat | enterprise_linux:8::appstream | dotnet9.0, dotnet-sdk-9.0, dotnet-sdk-aot-9.0 and 7 more | 0:9.0.124-1.el8_10 | RHSA-2026:99051 |
| Red Hat | enterprise_linux:8::crb | dotnet-hostfxr-10.0-debuginfo, dotnet-runtime-10.0-debuginfo, dotnet-apphost-pack-10.0-debuginfo | 0:10.0.15-1.el8_10 | RHSA-2026:99053 |
| Red Hat | enterprise_linux:8::crb | dotnet-hostfxr-8.0-debuginfo, dotnet-runtime-8.0-debuginfo, dotnet-apphost-pack-8.0-debuginfo | 0:8.0.34-1.el8_10 | RHSA-2026:99052 |
| Red Hat | enterprise_linux:8::crb | dotnet-hostfxr-9.0-debuginfo, dotnet-runtime-9.0-debuginfo, dotnet-apphost-pack-9.0-debuginfo | 0:9.0.23-1.el8_10 | RHSA-2026:99051 |
| Red Hat | enterprise_linux:8::crb | dotnet10.0-debuginfo, dotnet10.0-debugsource, dotnet-sdk-10.0-debuginfo and 2 more | 0:10.0.115-1.el8_10 | RHSA-2026:99053 |
| Red Hat | enterprise_linux:8::crb | dotnet8.0-debuginfo, dotnet8.0-debugsource, dotnet-sdk-8.0-debuginfo and 1 more | 0:8.0.134-1.el8_10 | RHSA-2026:99052 |
| Red Hat | enterprise_linux:8::crb | dotnet9.0-debuginfo, dotnet9.0-debugsource, dotnet-sdk-9.0-debuginfo and 2 more | 0:9.0.124-1.el8_10 | RHSA-2026:99051 |
| 20 more for Red Hat in the JSON and on Red Hat's page. | ||||
| AlmaLinux | 8 | dotnet-hostfxr-10.0, dotnet-runtime-10.0, aspnetcore-runtime-10.0 and 5 more | 10.0.15-1.el8_10 | ALSA-2026:99053 |
| AlmaLinux | 8 | dotnet-hostfxr-8.0, dotnet-runtime-8.0, aspnetcore-runtime-8.0 and 5 more | 8.0.34-1.el8_10 | ALSA-2026:99052 |
| AlmaLinux | 8 | dotnet-hostfxr-9.0, dotnet-runtime-9.0, aspnetcore-runtime-9.0 and 5 more | 9.0.23-1.el8_10 | ALSA-2026:99051 |
| AlmaLinux | 8 | dotnet-sdk-10.0, dotnet-sdk-aot-10.0, dotnet-sdk-dbg-10.0 and 2 more | 10.0.115-1.el8_10 | ALSA-2026:99053 |
| AlmaLinux | 8 | dotnet-sdk-8.0, dotnet-sdk-dbg-8.0, dotnet-templates-8.0 and 1 more | 8.0.134-1.el8_10 | ALSA-2026:99052 |
| AlmaLinux | 8 | dotnet-sdk-9.0, dotnet-sdk-aot-9.0, dotnet-sdk-dbg-9.0 and 3 more | 9.0.124-1.el8_10 | ALSA-2026:99051 |
| Rocky Linux | 8 | dotnet-hostfxr-10.0, dotnet-runtime-10.0, aspnetcore-runtime-10.0 and 8 more | 0:10.0.15-1.el8_10 | RLSA-2026:99053 |
| Rocky Linux | 8 | dotnet-hostfxr-8.0, dotnet-runtime-8.0, aspnetcore-runtime-8.0 and 8 more | 0:8.0.34-1.el8_10 | RLSA-2026:99052 |
| Rocky Linux | 8 | dotnet-hostfxr-9.0, dotnet-runtime-9.0, aspnetcore-runtime-9.0 and 8 more | 0:9.0.23-1.el8_10 | RLSA-2026:99051 |
| Rocky Linux | 8 | dotnet-sdk-10.0, dotnet-sdk-aot-10.0, dotnet-sdk-dbg-10.0 and 6 more | 0:10.0.115-1.el8_10 | RLSA-2026:99053 |
| Rocky Linux | 8 | dotnet-sdk-8.0, dotnet-sdk-dbg-8.0, dotnet8.0-debuginfo and 4 more | 0:8.0.134-1.el8_10 | RLSA-2026:99052 |
| Rocky Linux | 8 | dotnet-sdk-9.0, dotnet-sdk-aot-9.0, dotnet-sdk-dbg-9.0 and 7 more | 0:9.0.124-1.el8_10 | RLSA-2026:99051 |
| Alpine | v3.22, v3.23, v3.24 | dotnet8-runtime | 8.0.34-r0 | ALPINE-CVE-2026-114146 |
| Alpine | v3.22, v3.23, v3.24 | dotnet9-runtime | 9.0.23-r0 | ALPINE-CVE-2026-114146 |
| Alpine | v3.24 | dotnet10-runtime | 10.0.15-r0 | ALPINE-CVE-2026-114146 |
From the distributions' data via OSV.dev: Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0; Red Hat Security Data © Red Hat, Inc., CC BY 4.0; AlmaLinux's OSV database, MIT; Rocky Linux's errata, BSD-3-Clause; the Alpine secdb, CC BY-SA 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Ubuntu · Red Hat · Alpine.
Red Hat rates this Important.
Red Hat Product Security rates this vulnerability as Important rather than Critical because exploitation requires valid credentials and victim interaction, preventing unauthenticated remote execution. The severity reflects the potential for authenticated attackers to impersonate higher-privileged sessions and trigger hub invocations across network boundaries. This issue specifically impacts deployments hosting ASP.NET Core applications that utilize SignalR communication channels; environments not exposing SignalR endpoints remain unaffected.
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | dotnet10.0-0:10.0.115-1.el10_3 | Fixed 2026-11-11 | RHSA-2026:99143 |
| Red Hat Enterprise Linux 10 | dotnet9.0-0:9.0.124-1.el10_3 | Fixed 2026-11-11 | RHSA-2026:99145 |
| Red Hat Enterprise Linux 10 | dotnet8.0-0:8.0.134-1.el10_3 | Fixed 2026-11-11 | RHSA-2026:99147 |
| Red Hat Enterprise Linux 8 | dotnet9.0-0:9.0.124-1.el8_10 | Fixed 2026-11-11 | RHSA-2026:99051 |
| Red Hat Enterprise Linux 8 | dotnet8.0-0:8.0.134-1.el8_10 | Fixed 2026-11-11 | RHSA-2026:99052 |
| Red Hat Enterprise Linux 8 | dotnet10.0-0:10.0.115-1.el8_10 | Fixed 2026-11-11 | RHSA-2026:99053 |
| Red Hat Enterprise Linux 9 | dotnet10.0-0:10.0.115-1.el9_9 | Fixed 2026-11-12 | RHSA-2026:99142 |
| Red Hat Enterprise Linux 9 | dotnet9.0-0:9.0.124-1.el9_9 | Fixed 2026-11-12 | RHSA-2026:99144 |
| Red Hat Enterprise Linux 9 | dotnet8.0-0:8.0.134-1.el9_9 | Fixed 2026-11-12 | RHSA-2026:99146 |
| Red Hat Enterprise Linux 10 | dotnet11.0 | Affected | |
| Red Hat Enterprise Linux 8 | dotnet11.0 | Affected | |
| Red Hat Enterprise Linux 9 | dotnet11.0 | Affected | |
| Red Hat Hardened Images | dotnet10.0 | Affected | |
| Red Hat Hardened Images | dotnet8.0 | Affected | |
| Red Hat Hardened Images | dotnet9.0 | Affected |
Contains Red Hat Security Data © Red Hat, Inc., licensed under CC BY 4.0. Source: https://access.redhat.com/security/data. Modified: reformatted. Red Hat's page for CVE-2026-114146.