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COMPOSE-012Low severity-4 points

Image pinned to the :latest tag

Part of Architecture & Best Practices, which counts for 15% of the overall score. When this check fires it deducts 4 points from that category, once per scan, no matter how many places it turns up.

What it detects

image: name:latest is a moving target: the digest behind it changes over time, so builds are not reproducible and a redeploy can silently pull different, untested code.

Why it matters

The :latest tag points at whatever the registry currently serves, so two deploys from the same compose file can run different image versions, and a redeploy can pull code that was never tested. This makes builds non-reproducible and incidents hard to trace back to a specific version. It also means an upstream change can break you without any change on your side.

How to fix it

Pin each image to a specific version tag (for example postgres:16.2), and for stronger guarantees pin to an immutable digest (name@sha256:...). Update versions deliberately through a normal change so you can test and roll back. Renovate or Dependabot can automate the version-bump pull requests.

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