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fix: swap the Lambda base image's .NET 10.0.13 runtime for 10.0.14 (CVE-2026-111497) - #23
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Jossec101
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October 26, 2026 12:42
markettes
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Oct 26, 2026
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public.ecr.aws/lambda/dotnet:10(built 22 Oct) still ships .NET 10.0.13, which is vulnerable to CVE-2026-111497 (Brotli decoder out-of-bounds write), so a plain rebuild does not pick up the fix.The base stage now removes the 10.0.13
Microsoft.NETCore.AppandMicrosoft.AspNetCore.Appframeworks and copies the 10.0.14 ones frommcr.microsoft.com/dotnet/aspnet:10.0.14. Drop that step once AWS publishes a base image with 10.0.14 or later.Verified locally:
/var/lang/bin/dotnet --list-runtimesin the built image shows only 10.0.14.No RegionEndpoint or ServiceURL configured(no AWS config locally).