Reachable Doesn't Mean Exploitable. How to Tell the Difference From Configuration Alone.

The finding that means three different things

A scanner reports: "IAM role StorageAdmin has s3:DeleteBucket permission on the CloudTrail destination bucket prod-logs."

Is this a problem?

It depends on what else is true. That single finding — one role, one permission, one bucket — means three different things depending on the configuration surrounding it:

Scenario A: The role has the permission. An SCP blocks cross-account writes to the bucket. The bucket exists and is owned by your account. CloudTrail is delivering logs successfully.