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fix: upgrade Docker base to python:3.14.3-slim (73 → ~27 Snyk findings) #9

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Merged
ryanmcmillan merged 1 commit into from
Mar 21, 2026
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fix: upgrade Docker base to python:3.14.3-slim (73 → ~27 Snyk findings) #9

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2 changes: 1 addition & 1 deletion Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
FROM python:3.13.3-slim
FROM python:3.14.3-slim
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@greptile-apps greptile-apps bot Mar 21, 2026

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P2 Consider pinning base image by digest for supply-chain reproducibility

Pinning to a mutable tag (3.14.3-slim) means that if Docker Hub silently replaces the image (e.g., for an OS-level patch), subsequent builds pull a different layer without any visible change to this file. For a security-focused PR this is worth noting. Using the image digest (e.g., python:3.14.3-slim@sha256:<digest>) gives a stronger guarantee that every build uses the exact same bits.

Suggested change
FROM python:3.14.3-slim
FROM python:3.14.3-slim@sha256:<digest-from-docker-hub>

You can obtain the digest via:

docker pull python:3.14.3-slim
docker inspect --format='{{index .RepoDigests 0}}' python:3.14.3-slim


# Patch OS-level vulnerabilities in base image
RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get upgrade -y && rm -rf /var/lib/apt/lists/*
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