WS-2018-0608
Published:May 14, 2026
Updated:May 14, 2026
A vulnerability was discovered in versions 2.x of ASP.NET Core where a specially crafted request can cause excess resource consumption in Kestrel.
Affected Packages
microsoft.aspnetcore.all (NUGET):
Affected version(s) =2.0.0 <2.0.0-preview1-finalFix Suggestion:
Update to version 2.0.0-preview1-finalmicrosoft.servicefabric.azurefiles.volumeplugin (NUGET):
Affected version(s) =7.2.457Fix Suggestion:
Update to version no_fixmicrosoft.aspnetcore.server.kestrel.core (NUGET):
Affected version(s) >=2.0.1 <2.0.3Fix Suggestion:
Update to version 2.0.3virtocommerce.globaltool (NUGET):
Affected version(s) =3.0.0-beta0008 <3.0.0-beta0009Fix Suggestion:
Update to version 3.0.0-beta0009microsoft.aspnetcore.all (NUGET):
Affected version(s) >=2.1.0-preview1-final <2.1.1Fix Suggestion:
Update to version 2.1.1ind-studio-scada (NUGET):
Affected version(s) >=1.0.16 <=8.0.24Fix Suggestion:
Update to version no_fixswashbuckle.aspnetcore.cli (NUGET):
Affected version(s) >=5.0.0-rc3 <5.0.0Fix Suggestion:
Update to version 5.0.0sourcebrowser (NUGET):
Affected version(s) =1.0.18 <1.0.19Fix Suggestion:
Update to version 1.0.19plexus.interop.broker.redist-win-x86 (NUGET):
Affected version(s) >=0.1.0 <0.2.5Fix Suggestion:
Update to version 0.2.5microsoft.aspnetcore.server.kestrel.core (NUGET):
Affected version(s) >=2.1.0-preview1-final <2.1.1Fix Suggestion:
Update to version 2.1.1microsoft.aspnetcore.server.kestrel.transport.abstractions (NUGET):
Affected version(s) >=2.1.0-preview1-final <2.1.1Fix Suggestion:
Update to version 2.1.1microsoft.servicefabric.volumedriver (NUGET):
Affected version(s) =7.2.457Fix Suggestion:
Update to version no_fixmicrosoft.aspnetcore.server.kestrel.transport.abstractions (NUGET):
Affected version(s) >=2.0.1 <2.0.3Fix Suggestion:
Update to version 2.0.3microsoft.aspnetcore.server.kestrel.transport.libuv (NUGET):
Affected version(s) >=2.1.0-preview1-final <2.1.1Fix Suggestion:
Update to version 2.1.1microsoft.aspnetcore.server.kestrel.transport.libuv (NUGET):
Affected version(s) >=2.0.1 <2.0.3Fix Suggestion:
Update to version 2.0.3stubby.consolerunner (NUGET):
Affected version(s) >=0.1.2 <=0.1.15Fix Suggestion:
Update to version no_fixmicrosoft.aspnetcore.all (NUGET):
Affected version(s) >=2.0.3 <2.0.8Fix Suggestion:
Update to version 2.0.8microsoftdynamicsmanager (NUGET):
Affected version(s) =1.0.0 <1.0.1Fix Suggestion:
Update to version 1.0.1musement.lambdaexec (NUGET):
Affected version(s) >=0.1.0 <=0.3.0Fix Suggestion:
Update to version no_fixlunet (NUGET):
Affected version(s) =0.1.0-alpha.1 <0.1.0-alpha.2Fix Suggestion:
Update to version 0.1.0-alpha.2reactes6.web (NUGET):
Affected version(s) >=0.0.2 <0.0.4Fix Suggestion:
Update to version 0.0.4microsoft.aspnetcore.server.kestrel.core (NUGET):
Affected version(s) =2.0.0 <2.0.0-preview1-finalFix Suggestion:
Update to version 2.0.0-preview1-finalxam.plugin.livesync (NUGET):
Affected version(s) >=1.0.20 <=1.0.30Fix Suggestion:
Update to version no_fixmicrosoft.aspnetcore.server.kestrel.transport.libuv (NUGET):
Affected version(s) =2.0.0 <2.0.0-preview1-finalFix Suggestion:
Update to version 2.0.0-preview1-finalmarkdownpages.cli (NUGET):
Affected version(s) =0.1.0Fix Suggestion:
Update to version no_fixmicrosoft.aspnetcore.server.kestrel.transport.abstractions (NUGET):
Affected version(s) =2.0.0 <2.0.0-preview1-finalFix Suggestion:
Update to version 2.0.0-preview1-finalRelated Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH