Advisory record · GHSA-p3jp-9v83-76w9

Microsoft Security Advisory CVE-2026-111497 - .NET Brotli Decoder Out-of-bounds Write Vulnerability

CVSS 8.1 High

Published by the GitHub Advisory Database at 3 Nov 2026, 17:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
Microsoft.DotNet.ILCompilerNuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.ios-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.iossimulator-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.iossimulator-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-bionic-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-bionic-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.maccatalyst-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.maccatalyst-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.osx-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.osx-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.tvos-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.tvossimulator-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.tvossimulator-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.android-armNuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.android-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.android-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.android-x86NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.browser-wasmNuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.ios-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.iossimulator-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.iossimulator-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.linux-armNuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.linux-arm64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.linux-x64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.maccatalyst-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.maccatalyst-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.multithread.browser-wasmNuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.osx-arm64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.osx-x64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.tvos-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.tvossimulator-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.tvossimulator-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.wasi-wasmNuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.Mono.win-x64NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.Mono.win-x86NuGet>=8.0.0, <8.0.338.0.33
Microsoft.NETCore.App.Runtime.linux-armNuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.linux-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.linux-bionic-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.linux-bionic-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.linux-musl-armNuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.linux-musl-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.linux-musl-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.linux-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.osx-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.osx-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.win-arm64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.win-x64NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.win-x86NuGet>=8.0.0, <8.0.33 || >=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.1488.0.33, 9.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-armNuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-arm64NuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-bionic-armNuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-musl-armNuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-musl-arm64NuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-musl-x64NuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.linux-x64NuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.win-arm64NuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.win-x64NuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.win-x86NuGet>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.1489.0.22, 10.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.android-armNuGet>=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.14810.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.android-arm64NuGet>=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.14810.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.NativeAOT.android-x64NuGet>=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.14810.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.android-arm64NuGet>=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.14810.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.android-x64NuGet>=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.14810.0.14, 11.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.android-armNuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.browser-wasmNuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.ios-arm64NuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.iossimulator-arm64NuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.iossimulator-x64NuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.maccatalyst-arm64NuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.maccatalyst-x64NuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.tvos-arm64NuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.tvossimulator-arm64NuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Microsoft.NETCore.App.Runtime.tvossimulator-x64NuGet>=11.0.0-preview.1, <11.0.0-rc.3.26522.14811.0.0-rc.3.26522.148
Identifiers
GHSA-p3jp-9v83-76w9
Weakness (CWE)
CWE-787
Published
3 Nov 2026
Updated
3 Nov 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.1 High 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 3 Nov 2026, 17:33 UTC Confirmed by GitHub Advisory Database
  2. 3 Nov 2026, 17:35 UTC First seen by agentprime
  3. 3 Nov 2026, 17:45 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.