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Summary

This pull request is created by StepSecurity at the request of @son-oz. Please merge the Pull Request to incorporate the requested changes. Please tag @son-oz on your message if you have any questions related to the PR.

Security Fixes

Least Privileged GitHub Actions Token Permissions

The GITHUB_TOKEN is an automatically generated secret to make authenticated calls to the GitHub API. GitHub recommends setting minimum token permissions for the GITHUB_TOKEN.

Pinned Dependencies

GitHub Action tags and Docker tags are mutable. This poses a security risk. GitHub's Security Hardening guide recommends pinning actions to full length commit.

Harden Runner

Harden-Runner is an open-source security agent for the GitHub-hosted runner to prevent software supply chain attacks. It prevents exfiltration of credentials, detects tampering of source code during build, and enables running jobs without sudo access. See how popular open-source projects use Harden-Runner here.

Harden runner usage

You can find link to view insights and policy recommendation in the build log

Please refer to documentation to find more details.

Feedback

For bug reports, feature requests, and general feedback; please email support@stepsecurity.io. To create such PRs, please visit https://app.stepsecurity.io/securerepo.

Signed-off-by: StepSecurity Bot bot@stepsecurity.io

Signed-off-by: StepSecurity Bot <bot@stepsecurity.io>
@son-oz son-oz changed the title [StepSecurity] ci: Harden GitHub Actions ci: Harden GitHub Actions [StepSecurity] Jul 24, 2025
@son-oz son-oz merged commit 4c098df into OpenZeppelin:main Jul 31, 2025
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@github-actions github-actions bot locked and limited conversation to collaborators Jul 31, 2025
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4 participants