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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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Merged
Jossec101 merged 1 commit into from
Oct 26, 2026
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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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8 changes: 8 additions & 0 deletions RemoteSigner/Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,4 +1,12 @@
FROM --platform=linux/amd64 mcr.microsoft.com/dotnet/aspnet:10.0.14 AS runtime

FROM --platform=linux/amd64 public.ecr.aws/lambda/dotnet:10 AS base
# The Lambda base image still ships .NET 10.0.13, vulnerable to CVE-2026-111497 (Brotli decoder).
# Swap in the patched 10.0.14 runtime; drop this once the base image ships 10.0.14 or later.
RUN rm -rf /var/lang/bin/shared/Microsoft.NETCore.App/10.0.13 /var/lang/bin/shared/Microsoft.AspNetCore.App/10.0.13
COPY --from=runtime /usr/share/dotnet/shared/Microsoft.NETCore.App/10.0.14 /var/lang/bin/shared/Microsoft.NETCore.App/10.0.14
COPY --from=runtime /usr/share/dotnet/shared/Microsoft.AspNetCore.App/10.0.14 /var/lang/bin/shared/Microsoft.AspNetCore.App/10.0.14
ENV DOTNET_VERSION=10.0.14

FROM --platform=linux/amd64 mcr.microsoft.com/dotnet/sdk:10.0 as build
WORKDIR /src
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