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COMPOSE-013Low severity-4 points

Image reference has no 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

An image with no tag or digest resolves to :latest, so the running version is whatever the registry serves at pull time. This is a best-practice heuristic and can be intentional for local base images.

Why it matters

An image reference with no tag or digest defaults to :latest, so the running version depends on what the registry serves at pull time and can change between machines and deploys. This is the same reproducibility problem as an explicit :latest, just easier to miss. This check is a best-practice heuristic and can be intentional for a locally built base image.

How to fix it

Add an explicit version tag to each image (for example redis:7.2), or a digest for full immutability. If the image is built locally in the same file, either reference the build with a named image and tag or leave it and confirm the tag is applied at build time. Keep versions updated through reviewed changes.

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