Rule Information
Tags
dockerdockerfilefromdigestsha256immutabilitysupply-chainreproducibilityauditsecurity
CWE References
Interactive Playground
Experiment with the vulnerable code and security rule below. Edit the code to see how the rule detects different vulnerability patterns.
pathfinder scan --ruleset docker/DOCKER-AUD-001 --project .1
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rule.py
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About This Rule
Understanding the vulnerability and how it is detected
Detects FROM instructions without digest pinning (@sha256:...). Tags are mutable and can be updated to point to different images, while digests are immutable references to specific image layers.
How to Fix
Recommended remediation steps
- 1Review your Dockerfile to address the dockerfile source not pinned issue
- 2Follow Docker official best practices for image building
- 3Use docker build --check to validate Dockerfile syntax and best practices
References
External resources and documentation
Similar Rules
Explore related security rules for Docker
Frequently Asked Questions
Common questions about Dockerfile Source Not Pinned
FROM instruction without digest pinning. Consider using @sha256:... for immutable builds.
Review the secure code example in the playground above and apply the recommended pattern to your Dockerfile or docker-compose.yml.
New feature
Get these findings posted directly on your GitHub pull requests
The Dockerfile Source Not Pinned rule runs in CI and posts inline review comments on the exact lines — no dashboard, no SARIF viewer.