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Fix CVE-2026-48109: Pin MessagePack to patched version 2.5.301#3865

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Fix CVE-2026-48109: Pin MessagePack to patched version 2.5.301#3865
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@soodt soodt commented Jun 16, 2026

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Fix CVE-2026-48109: Pin MessagePack to patched version 2.5.301

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Description

The Component Alert flagged MessagePack 2.5.192 (High severity — CVE-2026-48109) in the Aspire AppHost project.

This package is not referenced directly — it's pulled in transitively via:

Aspire.AppHost.Sdk/13.1.2 → Aspire.Hosting.* → StackExchange.Redis → MessagePack 2.5.192

Adding an explicit <PackageReference Include="MessagePack" Version="2.5.301" /> forces NuGet to resolve the patched version, clearing the alert.

No functional changes — this only affects transitive dependency resolution in a test/dev app.

MessagePack 2.5.192 is pulled in transitively via:
  Aspire.AppHost.Sdk/13.1.2 → Aspire.Hosting.* → StackExchange.Redis → MessagePack 2.5.192

Adding an explicit PackageReference forces resolution to the patched
version (2.5.301) that addresses CVE-2026-48109 (High severity).

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@soodt soodt requested a review from a team as a code owner June 16, 2026 14:46
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