cve.bz

CVE-2026-114147 ASP.NET Core Denial of Service Vulnerability

7.5 highEPSS 1.3%Fix available

High (7.5) in microsoft. EPSS 1.3% estimated probability of exploitation activity in the next 30 days. Fixed in Microsoft.AspNetCore.SignalR.StackExchangeRedis 10.0.15, 11.0.0, 8.0.34.

On this page
Missing release of memory after effective lifetime in ASP.NET Core allows an unauthorized attacker to deny service over a network.

Severity

CVSS 3.1

7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
1.3% estimated probability of exploitation activity in the next 30 days; 71st percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: yes · Technical impact: partial, assessed 2026-11-10. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-401 Missing Release of Memory after Effective Lifetime
Published
Modified
Assigned by
microsoft (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • microsoft:.net 10.0 installed on linux
  • microsoft:.net 10.0 installed on mac os
  • microsoft:.net 10.0 installed on windows
  • microsoft:.net 11.0 installed on linux
  • microsoft:.net 11.0 installed on mac os
  • microsoft:.net 11.0 installed on windows
  • microsoft:.net 8.0 installed on linux
  • microsoft:.net 8.0 installed on mac os
  • microsoft:.net 8.0 installed on windows
  • microsoft:.net 9.0 installed on linux
  • microsoft:.net 9.0 installed on mac os
  • microsoft:.net 9.0 installed on windows
  • microsoft:microsoft visual studio 2022 version 17.14
  • microsoft:microsoft visual studio 2026 version 18.11
  • microsoft:microsoft visual studio 2026 version 18.12
  • microsoft:microsoft.aspnetcore.signalr.stackexchangeredis

Versions

From the CNA's record in the CVE List.

ProductAffected
Microsoft .NET 10.0 installed on Linuxfrom 10.0.0 before 10.0.15
Microsoft .NET 10.0 installed on Mac OSfrom 10.0.0 before 10.0.15
Microsoft .NET 10.0 installed on Windowsfrom 10.0.0 before 10.0.15
Microsoft .NET 11.0 installed on Linuxfrom 11.0.0-preview.1 before 11.0.0
Microsoft .NET 11.0 installed on Mac OSfrom 11.0.0-preview.1 before 11.0.0
Microsoft .NET 11.0 installed on Windowsfrom 11.0.0-preview.1 before 11.0.0
Microsoft .NET 8.0 installed on Linuxfrom 8.0.0 before 8.0.34
Microsoft .NET 8.0 installed on Mac OSfrom 8.0.0 before 8.0.34
Microsoft .NET 8.0 installed on Windowsfrom 8.0.0 before 8.0.34
Microsoft .NET 9.0 installed on Linuxfrom 9.0.0 before 9.0.23
Microsoft .NET 9.0 installed on Mac OSfrom 9.0.0 before 9.0.23
Microsoft .NET 9.0 installed on Windowsfrom 9.0.0 before 9.0.23
Microsoft Visual Studio 2022 version 17.14from 17.14.0 before 17.14.45
Microsoft Visual Studio 2026 version 18.11from 18.11.0 before 18.11.4
Microsoft Visual Studio 2026 version 18.12from 18.12.0 before 18.12.0
Microsoft.AspNetCore.SignalR.StackExchangeRedisfrom NOT_YET_AVAILABLE before 10.0.15

Fix and patched versions

  • Microsoft.AspNetCore.SignalR.StackExchangeRedis (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0
  • Microsoft.AspNetCore.App.Runtime.linux-arm (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0
  • Microsoft.AspNetCore.App.Runtime.linux-arm64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0
  • Microsoft.AspNetCore.App.Runtime.linux-musl-arm64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0
  • Microsoft.AspNetCore.App.Runtime.linux-musl-x64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0
  • Microsoft.AspNetCore.App.Runtime.linux-x64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0
  • Microsoft.AspNetCore.App.Runtime.osx-arm64 (NuGet): fixed in 8.0.34, 9.0.23, 10.0.15, 11.0.0
  • Ubuntu, Red Hat, AlmaLinux, Rocky Linux, Alpine: fixed package versions per release

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.SignalR.StackExchangeRedis>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.SignalR.StackExchangeRedis>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.SignalR.StackExchangeRedis>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.SignalR.StackExchangeRedis>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-arm>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-x64>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.osx-x64>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-arm64>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-x64>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-x86>=8.0.0-preview.1.23112.2 <8.0.348.0.34
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-arm>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-x64>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.osx-x64>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-arm64>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-x64>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-x86>=9.0.0-preview.1.24081.5 <9.0.239.0.23
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-arm>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-x64>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.osx-x64>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-arm64>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-x64>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-x86>=10.0.0-preview.1.25120.3 <10.0.1510.0.15
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-arm>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-arm64>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-arm64>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-musl-x64>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.linux-x64>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.osx-arm64>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.osx-x64>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-arm64>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-x64>=11.0.0-preview.1.26104.118 <11.0.011.0.0
GHSA-wr8v-9x5q-ggcmNuGetMicrosoft.AspNetCore.App.Runtime.win-x86>=11.0.0-preview.1.26104.118 <11.0.011.0.0

Linux distributions

DistributionReleasePackageFixed inAdvisory
Ubuntu22.04:LTSdotnet6, dotnet7no fix listedUBUNTU-CVE-2026-114147
Ubuntu22.04:LTSdotnet88.0.134-8.0.34-0ubuntu1~22.04.1UBUNTU-CVE-2026-114147 USN-9042-1
Ubuntu24.04:LTSdotnet1010.0.115-10.0.15-0ubuntu1~24.04.1UBUNTU-CVE-2026-114147 USN-9042-1
Ubuntu24.04:LTSdotnet88.0.134-8.0.34-0ubuntu1~24.04.1UBUNTU-CVE-2026-114147 USN-9042-1
Ubuntu26.04:LTSdotnet1010.0.115-10.0.15-0ubuntu1~26.04.1UBUNTU-CVE-2026-114147 USN-9042-1
Ubuntu26.10dotnet1010.0.115-10.0.15-0ubuntu1~26.10.1UBUNTU-CVE-2026-114147 USN-9042-1
Ubuntu26.10dotnet1111.0.100-11.0.0-0ubuntu1~26.10.1UBUNTU-CVE-2026-114147 USN-9042-1
Red Hatenterprise_linux:8::appstreamdotnet-hostfxr-10.0, dotnet-runtime-10.0, aspnetcore-runtime-10.0 and 8 more0:10.0.15-1.el8_10RHSA-2026:99053
Red Hatenterprise_linux:8::appstreamdotnet-hostfxr-8.0, dotnet-runtime-8.0, aspnetcore-runtime-8.0 and 8 more0:8.0.34-1.el8_10RHSA-2026:99052
Red Hatenterprise_linux:8::appstreamdotnet-hostfxr-9.0, dotnet-runtime-9.0, aspnetcore-runtime-9.0 and 8 more0:9.0.23-1.el8_10RHSA-2026:99051
Red Hatenterprise_linux:8::appstreamdotnet10.0, dotnet-sdk-10.0, dotnet-sdk-aot-10.0 and 6 more0:10.0.115-1.el8_10RHSA-2026:99053
Red Hatenterprise_linux:8::appstreamdotnet8.0, dotnet-sdk-8.0, dotnet-sdk-dbg-8.0 and 4 more0:8.0.134-1.el8_10RHSA-2026:99052
Red Hatenterprise_linux:8::appstreamdotnet9.0, dotnet-sdk-9.0, dotnet-sdk-aot-9.0 and 7 more0:9.0.124-1.el8_10RHSA-2026:99051
Red Hatenterprise_linux:8::crbdotnet-hostfxr-10.0-debuginfo, dotnet-runtime-10.0-debuginfo, dotnet-apphost-pack-10.0-debuginfo0:10.0.15-1.el8_10RHSA-2026:99053
Red Hatenterprise_linux:8::crbdotnet-hostfxr-8.0-debuginfo, dotnet-runtime-8.0-debuginfo, dotnet-apphost-pack-8.0-debuginfo0:8.0.34-1.el8_10RHSA-2026:99052
Red Hatenterprise_linux:8::crbdotnet-hostfxr-9.0-debuginfo, dotnet-runtime-9.0-debuginfo, dotnet-apphost-pack-9.0-debuginfo0:9.0.23-1.el8_10RHSA-2026:99051
Red Hatenterprise_linux:8::crbdotnet10.0-debuginfo, dotnet10.0-debugsource, dotnet-sdk-10.0-debuginfo and 2 more0:10.0.115-1.el8_10RHSA-2026:99053
Red Hatenterprise_linux:8::crbdotnet8.0-debuginfo, dotnet8.0-debugsource, dotnet-sdk-8.0-debuginfo and 1 more0:8.0.134-1.el8_10RHSA-2026:99052
Red Hatenterprise_linux:8::crbdotnet9.0-debuginfo, dotnet9.0-debugsource, dotnet-sdk-9.0-debuginfo and 2 more0:9.0.124-1.el8_10RHSA-2026:99051
18 more for Red Hat in the JSON and on Red Hat's page.
AlmaLinux8dotnet-hostfxr-10.0, dotnet-runtime-10.0, aspnetcore-runtime-10.0 and 5 more10.0.15-1.el8_10ALSA-2026:99053
AlmaLinux8dotnet-hostfxr-8.0, dotnet-runtime-8.0, aspnetcore-runtime-8.0 and 5 more8.0.34-1.el8_10ALSA-2026:99052
AlmaLinux8dotnet-hostfxr-9.0, dotnet-runtime-9.0, aspnetcore-runtime-9.0 and 5 more9.0.23-1.el8_10ALSA-2026:99051
AlmaLinux8dotnet-sdk-10.0, dotnet-sdk-aot-10.0, dotnet-sdk-dbg-10.0 and 2 more10.0.115-1.el8_10ALSA-2026:99053
AlmaLinux8dotnet-sdk-8.0, dotnet-sdk-dbg-8.0, dotnet-templates-8.0 and 1 more8.0.134-1.el8_10ALSA-2026:99052
AlmaLinux8dotnet-sdk-9.0, dotnet-sdk-aot-9.0, dotnet-sdk-dbg-9.0 and 3 more9.0.124-1.el8_10ALSA-2026:99051
Rocky Linux8dotnet-hostfxr-10.0, dotnet-runtime-10.0, aspnetcore-runtime-10.0 and 8 more0:10.0.15-1.el8_10RLSA-2026:99053
Rocky Linux8dotnet-hostfxr-8.0, dotnet-runtime-8.0, aspnetcore-runtime-8.0 and 8 more0:8.0.34-1.el8_10RLSA-2026:99052
Rocky Linux8dotnet-hostfxr-9.0, dotnet-runtime-9.0, aspnetcore-runtime-9.0 and 8 more0:9.0.23-1.el8_10RLSA-2026:99051
Rocky Linux8dotnet-sdk-10.0, dotnet-sdk-aot-10.0, dotnet-sdk-dbg-10.0 and 6 more0:10.0.115-1.el8_10RLSA-2026:99053
Rocky Linux8dotnet-sdk-8.0, dotnet-sdk-dbg-8.0, dotnet8.0-debuginfo and 4 more0:8.0.134-1.el8_10RLSA-2026:99052
Rocky Linux8dotnet-sdk-9.0, dotnet-sdk-aot-9.0, dotnet-sdk-dbg-9.0 and 7 more0:9.0.124-1.el8_10RLSA-2026:99051
Alpinev3.22, v3.23, v3.24dotnet8-runtime8.0.34-r0ALPINE-CVE-2026-114147
Alpinev3.22, v3.23, v3.24dotnet9-runtime9.0.23-r0ALPINE-CVE-2026-114147
Alpinev3.24dotnet10-runtime10.0.15-r0ALPINE-CVE-2026-114147

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

Red Hat rates this Important.

ProductPackageStateAdvisory
Red Hat Enterprise Linux 10dotnet10.0-0:10.0.115-1.el10_3Fixed 2026-11-11RHSA-2026:99143
Red Hat Enterprise Linux 10dotnet9.0-0:9.0.124-1.el10_3Fixed 2026-11-11RHSA-2026:99145
Red Hat Enterprise Linux 10dotnet8.0-0:8.0.134-1.el10_3Fixed 2026-11-11RHSA-2026:99147
Red Hat Enterprise Linux 8dotnet9.0-0:9.0.124-1.el8_10Fixed 2026-11-11RHSA-2026:99051
Red Hat Enterprise Linux 8dotnet8.0-0:8.0.134-1.el8_10Fixed 2026-11-11RHSA-2026:99052
Red Hat Enterprise Linux 8dotnet10.0-0:10.0.115-1.el8_10Fixed 2026-11-11RHSA-2026:99053
Red Hat Enterprise Linux 9dotnet10.0-0:10.0.115-1.el9_9Fixed 2026-11-12RHSA-2026:99142
Red Hat Enterprise Linux 9dotnet9.0-0:9.0.124-1.el9_9Fixed 2026-11-12RHSA-2026:99144
Red Hat Enterprise Linux 9dotnet8.0-0:8.0.134-1.el9_9Fixed 2026-11-12RHSA-2026:99146
Red Hat Enterprise Linux 10dotnet11.0Affected
Red Hat Enterprise Linux 8dotnet11.0Affected
Red Hat Enterprise Linux 9dotnet11.0Affected
Red Hat Hardened Imagesdotnet10.0Not affected
Red Hat Hardened Imagesdotnet8.0Not affected
Red Hat Hardened Imagesdotnet9.0Not 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-2026-114147.

References

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