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ci: don't persist GITHUB_TOKEN in checkout (SEC-843) - #397
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actions/checkout writes the job token into .git/config by default, where any later step (composer install, phpunit, third-party actions) can read it. Nothing in this workflow needs git credentials after checkout; the gh-pages deploy authenticates with its own github_token input. Refs SEC-843
Justin Hammond (Justintime50)
approved these changes
Nov 3, 2026
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What
Adds
persist-credentials: falseto everyactions/checkoutstep inci.yml.Why
By default,
actions/checkoutwrites the job'sGITHUB_TOKENinto.git/configand leaves it there for the rest of the job. Every later step can read it:composer install, phpunit, and third-party actions. A compromised dependency or action could then use the token to push code or tamper with releases. Nothing in this workflow needs git credentials after checkout, so the token doesn't need to be on disk.peaceiris/actions-gh-pagesis unaffected. It authenticates with its owngithub_tokeninput, not with the persisted git config.Stack
persist-credentials: falsepermissions:Part of SEC-842 (org-wide rollout).