GH Actions: set permissions for each workflow/job - #53
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> Users frequently over-scope their workflow and job permissions, or set broad workflow-level permissions without realizing that all jobs inherit those permissions.
>
> Furthermore, users often don't realize that the _default_ `GITHUB_TOKEN` permissions can be very broad, meaning that workflows that don't configure any permissions at all can _still_ provide excessive credentials to their individual jobs.
>
> **Remediation**
> In general, permissions should be declared as minimally as possible, and as close to their usage site as possible.
>
> In practice, this means that workflows should almost always set `permissions: {}` at the workflow level to disable all permissions by default, and then set specific job-level permissions as needed.
Refs:
* https://docs.zizmor.sh/audits/#excessive-permissions
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Refs: