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registry/v2/_catalog

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What is this endpoint?

registry/v2/_catalog

Container Registry Catalog

What an attacker could do

The Docker Registry v2 catalog lists every repository name on the registry, enabling an attacker to enumerate and pull all stored images, and on an unauthenticated registry to push malicious replacements.

How to defend it

Require token authentication on the registry, disable or restrict the _catalog endpoint, and serve only over TLS behind an authenticating proxy.

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Learn More

Want to dive deeper into this topic? Check out the official documentation.

Read Official Documentation