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OpenAdvisories
Medium · 6.2 CVE-2023-35391 BIT-aspnet-core-2023-35391BIT-dotnet-2023-35391BIT-dotnet-sdk-2023-35391EUVD-2023-2314GHSA-j8rm-cm55-qqj6

ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability

Published Aug 8, 2023 · Updated Aug 10, 2026 · Assigned by microsoft

Description

ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability

Affected products

VendorProductAffectedFixed
Microsoft .NET 6.0 6.0.0 – < 6.0.21 6.0.21
Microsoft .NET 7.0 7.0.0 – < 7.0.10 7.0.10
Microsoft ASP.NET Core 2.1 2.0 – < 2.1.40 2.1.40
Microsoft Microsoft Visual Studio 2022 version 17.2 17.2.0 – < 17.2.18 17.2.18
Microsoft Microsoft Visual Studio 2022 version 17.4 17.4.0 – < 17.4.10 17.4.10
Microsoft Microsoft Visual Studio 2022 version 17.6 17.6.0 – < 17.6.6 17.6.6

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Alpine v3.20 dotnet6-build 6.0.121-r0 —
Alpine v3.20 dotnet6-runtime 6.0.21-r0 —
Alpine v3.19 dotnet6-build 6.0.121-r0 —
Alpine v3.19 dotnet6-runtime 6.0.21-r0 —
Alpine v3.19 dotnet7-build 7.0.110-r0 —
Alpine v3.19 dotnet7-runtime 7.0.10-r0 —
Alpine v3.18 dotnet6-build 6.0.121-r0 —
Alpine v3.18 dotnet6-runtime 6.0.21-r0 —
Alpine v3.18 dotnet7-build 7.0.110-r0 —
Alpine v3.18 dotnet7-runtime 7.0.10-r0 —

Affected packages

EcosystemPackageAffectedFixedRecord
NuGet Microsoft.AspNetCore.SignalR.Redis < 1.0.40 1.0.40 GHSA-j8rm-cm55-qqj6
NuGet Microsoft.AspNetCore.SignalR.StackExchangeRedis >= 7.0.0, < 7.0.10 7.0.10 GHSA-j8rm-cm55-qqj6
NuGet Microsoft.AspNetCore.SignalR.StackExchangeRedis >= 6.0.0, < 6.0.21 6.0.21 GHSA-j8rm-cm55-qqj6

Advisories 4

References