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Actions: Add warning/finding when using actions/create-github-app-token without permissions

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#21,264 2 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
35/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
github-actions
Domain
ci-cd, security

Research direction

Start by reviewing the actions/create-github-app-token action and how CodeQL analyzes GitHub Actions workflows. Define the warning's trigger and expected handling for workflows that omit permissions, then add coverage showing the finding for the relevant configuration.

Written by the indexing model from the issue text.

Description

question

Description of the issue
You can use https://github.com/actions/create-github-app-token to create an app installation token. Depending on the app, it can have broad permissions. Unfortunately, the action does not use permissions-none as default, but all the permissions of the app.

So CodeQL could warn when using this app without setting permissions.

Dominant language
CodeQL
Stars
10.1k
Forks
2.1k
Avg merge
2d 16h
Merged PRs (30d)
143

Contributor guide

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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