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

Advisory record · `GHSA-p3jp-9v83-76w9`

- **Identifiers:** `GHSA-p3jp-9v83-76w9`
- **State:** Confirmed
- **Severity:** CVSS 8.1 High
- **Critical:** No
- **Weakness (CWE):** [CWE-787](https://cwe.mitre.org/data/definitions/787.html)
- **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md)
- **Published:** 3 Nov 2026
- **Updated:** 3 Nov 2026
- **Reviewed by a person:** No

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.

## Affected packages

- `Microsoft.DotNet.ILCompiler` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.ios-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.iossimulator-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.iossimulator-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-bionic-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-bionic-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.maccatalyst-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.maccatalyst-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.osx-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.osx-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.tvos-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.tvossimulator-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.tvossimulator-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.android-arm` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.android-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.android-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.android-x86` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.browser-wasm` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.ios-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.iossimulator-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.iossimulator-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.linux-arm` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.linux-arm64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.linux-x64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.maccatalyst-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.maccatalyst-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.multithread.browser-wasm` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.osx-arm64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.osx-x64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.tvos-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.tvossimulator-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.tvossimulator-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.wasi-wasm` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.Mono.win-x64` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.Mono.win-x86` (NuGet): affected `>=8.0.0, <8.0.33`; fixed in `8.0.33`
- `Microsoft.NETCore.App.Runtime.linux-arm` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.linux-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.linux-bionic-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.linux-bionic-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.linux-musl-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.linux-musl-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.linux-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.osx-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.osx-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.win-arm64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.win-x64` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.win-x86` (NuGet): affected `>=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.3.26522.148`; fixed in `8.0.33`, `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-arm` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-arm64` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-bionic-arm` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-musl-arm` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-musl-arm64` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-musl-x64` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.linux-x64` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.win-arm64` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.win-x64` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.win-x86` (NuGet): affected `>=9.0.0, <9.0.22 || >=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `9.0.22`, `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.android-arm` (NuGet): affected `>=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.android-arm64` (NuGet): affected `>=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.NativeAOT.android-x64` (NuGet): affected `>=10.0.0, <10.0.14 || >=11.0.0-preview.1.26104.118, <11.0.0-rc.3.26522.148`; fixed in `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.android-arm64` (NuGet): affected `>=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.android-x64` (NuGet): affected `>=10.0.0, <10.0.14 || >=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `10.0.14`, `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.android-arm` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.browser-wasm` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.ios-arm64` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.iossimulator-arm64` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.iossimulator-x64` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.maccatalyst-arm64` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.maccatalyst-x64` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.tvos-arm64` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.tvossimulator-arm64` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`
- `Microsoft.NETCore.App.Runtime.tvossimulator-x64` (NuGet): affected `>=11.0.0-preview.1, <11.0.0-rc.3.26522.148`; fixed in `11.0.0-rc.3.26522.148`

## 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

- 8.1 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** No score.

## Timeline

- 3 Nov 2026, 17:33 UTC: [Confirmed by GitHub Advisory Database](https://github.com/advisories/GHSA-p3jp-9v83-76w9)
- 3 Nov 2026, 17:35 UTC: First seen by agentprime
- 3 Nov 2026, 17:45 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-p3jp-9v83-76w9)

## Sources

- [GitHub Advisory Database: GHSA-p3jp-9v83-76w9](https://github.com/advisories/GHSA-p3jp-9v83-76w9)
- [OSV: GHSA-p3jp-9v83-76w9](https://osv.dev/vulnerability/GHSA-p3jp-9v83-76w9)
- <https://github.com/dotnet/runtime/security/advisories/GHSA-p3jp-9v83-76w9>
- <https://github.com/dotnet/announcements/issues/494>
- <https://github.com/dotnet/runtime/issues/136446>
- <https://github.com/dotnet/runtime/pull/136471>
- <https://github.com/dotnet/runtime/commit/f3d8b2f230bc7c9899df6eef2d41e2748107cffa>
- <https://github.com/dotnet/runtime>

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.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-p3jp-9v83-76w9>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-p3jp-9v83-76w9/>. Everything for agents: <https://agentprime.io/llms.txt>.